Home / 515,900,954.10-773,829,815.15-166,139,280.14

Finding the Fourth Proportional to 515,900,954.10, 773,829,815.15 and 166,139,280.14

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Solution

The fourth proportional to 515,900,954.10, 773,829,815.15 and 166,139,280.14 is: 249,201,959.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,900,954.10 : 773,829,815.15 = 166,139,280.14 : x
  2. Step 2: Convert to fraction form
    515,900,954.10/773,829,815.15 = 166,139,280.14/x
  3. Step 3: Cross multiply
    515,900,954.10x = 773,829,815.15 × 166,139,280.14
  4. Step 4: Simplify right side
    515,900,954.10x = 128,563,528,439,890,256
  5. Step 5: Solve for x
    x = 128,563,528,439,890,256/515,900,954.10
  6. Step 6: Final answer
    x = 249,201,959.05

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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.