Home / 530,018,729.60-731,443,282.24-291,889,304.96

Finding the Fourth Proportional to 530,018,729.60, 731,443,282.24 and 291,889,304.96

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Solution

The fourth proportional to 530,018,729.60, 731,443,282.24 and 291,889,304.96 is: 402,816,842.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,018,729.60 : 731,443,282.24 = 291,889,304.96 : x
  2. Step 2: Convert to fraction form
    530,018,729.60/731,443,282.24 = 291,889,304.96/x
  3. Step 3: Cross multiply
    530,018,729.60x = 731,443,282.24 × 291,889,304.96
  4. Step 4: Simplify right side
    530,018,729.60x = 213,500,471,270,694,688
  5. Step 5: Solve for x
    x = 213,500,471,270,694,688/530,018,729.60
  6. Step 6: Final answer
    x = 402,816,842.78

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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.