Home / 728,478,232.72-1,092,719,215.32-297,656,728.72

Finding the Fourth Proportional to 728,478,232.72, 1,092,719,215.32 and 297,656,728.72

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Solution

The fourth proportional to 728,478,232.72, 1,092,719,215.32 and 297,656,728.72 is: 446,485,855.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,478,232.72 : 1,092,719,215.32 = 297,656,728.72 : x
  2. Step 2: Convert to fraction form
    728,478,232.72/1,092,719,215.32 = 297,656,728.72/x
  3. Step 3: Cross multiply
    728,478,232.72x = 1,092,719,215.32 × 297,656,728.72
  4. Step 4: Simplify right side
    728,478,232.72x = 325,255,227,041,636,544
  5. Step 5: Solve for x
    x = 325,255,227,041,636,544/728,478,232.72
  6. Step 6: Final answer
    x = 446,485,855.63

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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.