Home / 728,298,227.64-1,005,129,441.76-446,227,862.24

Finding the Fourth Proportional to 728,298,227.64, 1,005,129,441.76 and 446,227,862.24

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Solution

The fourth proportional to 728,298,227.64, 1,005,129,441.76 and 446,227,862.24 is: 615,842,171.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,298,227.64 : 1,005,129,441.76 = 446,227,862.24 : x
  2. Step 2: Convert to fraction form
    728,298,227.64/1,005,129,441.76 = 446,227,862.24/x
  3. Step 3: Cross multiply
    728,298,227.64x = 1,005,129,441.76 × 446,227,862.24
  4. Step 4: Simplify right side
    728,298,227.64x = 448,516,762,071,049,408
  5. Step 5: Solve for x
    x = 448,516,762,071,049,408/728,298,227.64
  6. Step 6: Final answer
    x = 615,842,171.58

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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.