Home / 31,083,142,173.20-42,894,864,550.12-16,809,969,487.12

Finding the Fourth Proportional to 31,083,142,173.20, 42,894,864,550.12 and 16,809,969,487.12

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Solution

The fourth proportional to 31,083,142,173.20, 42,894,864,550.12 and 16,809,969,487.12 is: 23,197,827,305.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,083,142,173.20 : 42,894,864,550.12 = 16,809,969,487.12 : x
  2. Step 2: Convert to fraction form
    31,083,142,173.20/42,894,864,550.12 = 16,809,969,487.12/x
  3. Step 3: Cross multiply
    31,083,142,173.20x = 42,894,864,550.12 × 16,809,969,487.12
  4. Step 4: Simplify right side
    31,083,142,173.20x = 721,061,364,241,662,607,360
  5. Step 5: Solve for x
    x = 721,061,364,241,662,607,360/31,083,142,173.20
  6. Step 6: Final answer
    x = 23,197,827,305.35

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Double scale
Find fourth proportional to 31,083,142,174.20, 42,894,864,551.50 and 16,809,969,488.12
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.