Home / 30,720,118.19-42,392,061.65-16,778,697.48

Finding the Fourth Proportional to 30,720,118.19, 42,392,061.65 and 16,778,697.48

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Solution

The fourth proportional to 30,720,118.19, 42,392,061.65 and 16,778,697.48 is: 23,153,673.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720,118.19 : 42,392,061.65 = 16,778,697.48 : x
  2. Step 2: Convert to fraction form
    30,720,118.19/42,392,061.65 = 16,778,697.48/x
  3. Step 3: Cross multiply
    30,720,118.19x = 42,392,061.65 × 16,778,697.48
  4. Step 4: Simplify right side
    30,720,118.19x = 711,283,578,053,936.50
  5. Step 5: Solve for x
    x = 711,283,578,053,936.50/30,720,118.19
  6. Step 6: Final answer
    x = 23,153,673.23

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Double scale
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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.