Home / 515,900,952.60-773,829,812.90-166,139,278.64

Finding the Fourth Proportional to 515,900,952.60, 773,829,812.90 and 166,139,278.64

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Solution

The fourth proportional to 515,900,952.60, 773,829,812.90 and 166,139,278.64 is: 249,201,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,900,952.60 : 773,829,812.90 = 166,139,278.64 : x
  2. Step 2: Convert to fraction form
    515,900,952.60/773,829,812.90 = 166,139,278.64/x
  3. Step 3: Cross multiply
    515,900,952.60x = 773,829,812.90 × 166,139,278.64
  4. Step 4: Simplify right side
    515,900,952.60x = 128,563,526,905,332,144
  5. Step 5: Solve for x
    x = 128,563,526,905,332,144/515,900,952.60
  6. Step 6: Final answer
    x = 249,201,956.80

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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.