Home / 147,745,002.40-221,617,503.60-86,522,999.20

Finding the Fourth Proportional to 147,745,002.40, 221,617,503.60 and 86,522,999.20

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Solution

The fourth proportional to 147,745,002.40, 221,617,503.60 and 86,522,999.20 is: 129,784,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,745,002.40 : 221,617,503.60 = 86,522,999.20 : x
  2. Step 2: Convert to fraction form
    147,745,002.40/221,617,503.60 = 86,522,999.20/x
  3. Step 3: Cross multiply
    147,745,002.40x = 221,617,503.60 × 86,522,999.20
  4. Step 4: Simplify right side
    147,745,002.40x = 19,175,011,086,688,796
  5. Step 5: Solve for x
    x = 19,175,011,086,688,796/147,745,002.40
  6. Step 6: Final answer
    x = 129,784,498.80

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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.