Home / 30,438,641.76-42,005,315.52-16,687,310.64

Finding the Fourth Proportional to 30,438,641.76, 42,005,315.52 and 16,687,310.64

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Solution

The fourth proportional to 30,438,641.76, 42,005,315.52 and 16,687,310.64 is: 23,028,483.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,438,641.76 : 42,005,315.52 = 16,687,310.64 : x
  2. Step 2: Convert to fraction form
    30,438,641.76/42,005,315.52 = 16,687,310.64/x
  3. Step 3: Cross multiply
    30,438,641.76x = 42,005,315.52 × 16,687,310.64
  4. Step 4: Simplify right side
    30,438,641.76x = 700,955,748,613,453.25
  5. Step 5: Solve for x
    x = 700,955,748,613,453.25/30,438,641.76
  6. Step 6: Final answer
    x = 23,028,483.14

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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.