Home / 257,438,115.10-386,157,172.65-257,438,115.10

Finding the Fourth Proportional to 257,438,115.10, 386,157,172.65 and 257,438,115.10

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Solution

The fourth proportional to 257,438,115.10, 386,157,172.65 and 257,438,115.10 is: 386,157,172.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,438,115.10 : 386,157,172.65 = 257,438,115.10 : x
  2. Step 2: Convert to fraction form
    257,438,115.10/386,157,172.65 = 257,438,115.10/x
  3. Step 3: Cross multiply
    257,438,115.10x = 386,157,172.65 × 257,438,115.10
  4. Step 4: Simplify right side
    257,438,115.10x = 99,411,574,659,361,264
  5. Step 5: Solve for x
    x = 99,411,574,659,361,264/257,438,115.10
  6. Step 6: Final answer
    x = 386,157,172.65

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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.