Home / 15,433,691.18-21,298,884.90-8,464,646.21

Finding the Fourth Proportional to 15,433,691.18, 21,298,884.90 and 8,464,646.21

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Solution

The fourth proportional to 15,433,691.18, 21,298,884.90 and 8,464,646.21 is: 11,681,426.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433,691.18 : 21,298,884.90 = 8,464,646.21 : x
  2. Step 2: Convert to fraction form
    15,433,691.18/21,298,884.90 = 8,464,646.21/x
  3. Step 3: Cross multiply
    15,433,691.18x = 21,298,884.90 × 8,464,646.21
  4. Step 4: Simplify right side
    15,433,691.18x = 180,287,525,346,011.25
  5. Step 5: Solve for x
    x = 180,287,525,346,011.25/15,433,691.18
  6. Step 6: Final answer
    x = 11,681,426.25

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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.