Home / 256,614,169.20-384,935,999.40-74,889,394.80

Finding the Fourth Proportional to 256,614,169.20, 384,935,999.40 and 74,889,394.80

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Solution

The fourth proportional to 256,614,169.20, 384,935,999.40 and 74,889,394.80 is: 112,338,395.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,614,169.20 : 384,935,999.40 = 74,889,394.80 : x
  2. Step 2: Convert to fraction form
    256,614,169.20/384,935,999.40 = 74,889,394.80/x
  3. Step 3: Cross multiply
    256,614,169.20x = 384,935,999.40 × 74,889,394.80
  4. Step 4: Simplify right side
    256,614,169.20x = 28,827,624,031,799,160
  5. Step 5: Solve for x
    x = 28,827,624,031,799,160/256,614,169.20
  6. Step 6: Final answer
    x = 112,338,395.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.