Home / 119,231,999.40-178,847,999.10-38,461,132.20

Finding the Fourth Proportional to 119,231,999.40, 178,847,999.10 and 38,461,132.20

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Solution

The fourth proportional to 119,231,999.40, 178,847,999.10 and 38,461,132.20 is: 57,691,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,231,999.40 : 178,847,999.10 = 38,461,132.20 : x
  2. Step 2: Convert to fraction form
    119,231,999.40/178,847,999.10 = 38,461,132.20/x
  3. Step 3: Cross multiply
    119,231,999.40x = 178,847,999.10 × 38,461,132.20
  4. Step 4: Simplify right side
    119,231,999.40x = 6,878,696,537,090,581
  5. Step 5: Solve for x
    x = 6,878,696,537,090,581/119,231,999.40
  6. Step 6: Final answer
    x = 57,691,698.30

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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.