Home / 80,699,518.41-111,399,698.18-54,253,210.13

Finding the Fourth Proportional to 80,699,518.41, 111,399,698.18 and 54,253,210.13

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Solution

The fourth proportional to 80,699,518.41, 111,399,698.18 and 54,253,210.13 is: 74,892,531.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,699,518.41 : 111,399,698.18 = 54,253,210.13 : x
  2. Step 2: Convert to fraction form
    80,699,518.41/111,399,698.18 = 54,253,210.13/x
  3. Step 3: Cross multiply
    80,699,518.41x = 111,399,698.18 × 54,253,210.13
  4. Step 4: Simplify right side
    80,699,518.41x = 6,043,791,233,774,502
  5. Step 5: Solve for x
    x = 6,043,791,233,774,502/80,699,518.41
  6. Step 6: Final answer
    x = 74,892,531.62

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Double scale
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Similar ratio
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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.