Home / 521,362,967.70-782,149,427.55-152,897,207.70

Finding the Fourth Proportional to 521,362,967.70, 782,149,427.55 and 152,897,207.70

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Solution

The fourth proportional to 521,362,967.70, 782,149,427.55 and 152,897,207.70 is: 229,376,597.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,362,967.70 : 782,149,427.55 = 152,897,207.70 : x
  2. Step 2: Convert to fraction form
    521,362,967.70/782,149,427.55 = 152,897,207.70/x
  3. Step 3: Cross multiply
    521,362,967.70x = 782,149,427.55 × 152,897,207.70
  4. Step 4: Simplify right side
    521,362,967.70x = 119,588,463,476,548,432
  5. Step 5: Solve for x
    x = 119,588,463,476,548,432/521,362,967.70
  6. Step 6: Final answer
    x = 229,376,597.28

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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.