Home / 514,941,925.42-710,614,921.26-279,992,668.54

Finding the Fourth Proportional to 514,941,925.42, 710,614,921.26 and 279,992,668.54

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Solution

The fourth proportional to 514,941,925.42, 710,614,921.26 and 279,992,668.54 is: 386,387,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,941,925.42 : 710,614,921.26 = 279,992,668.54 : x
  2. Step 2: Convert to fraction form
    514,941,925.42/710,614,921.26 = 279,992,668.54/x
  3. Step 3: Cross multiply
    514,941,925.42x = 710,614,921.26 × 279,992,668.54
  4. Step 4: Simplify right side
    514,941,925.42x = 198,966,968,107,929,376
  5. Step 5: Solve for x
    x = 198,966,968,107,929,376/514,941,925.42
  6. Step 6: Final answer
    x = 386,387,198.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.