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Finding the Fourth Proportional to 153,319,246.20, 229,978,869.30 and 45,613,870.20

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Solution

The fourth proportional to 153,319,246.20, 229,978,869.30 and 45,613,870.20 is: 68,420,805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,319,246.20 : 229,978,869.30 = 45,613,870.20 : x
  2. Step 2: Convert to fraction form
    153,319,246.20/229,978,869.30 = 45,613,870.20/x
  3. Step 3: Cross multiply
    153,319,246.20x = 229,978,869.30 × 45,613,870.20
  4. Step 4: Simplify right side
    153,319,246.20x = 10,490,226,292,992,966
  5. Step 5: Solve for x
    x = 10,490,226,292,992,966/153,319,246.20
  6. Step 6: Final answer
    x = 68,420,805.30

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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.