Home / 14,587,764.66-20,129,070.65-8,390,455.47

Finding the Fourth Proportional to 14,587,764.66, 20,129,070.65 and 8,390,455.47

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Solution

The fourth proportional to 14,587,764.66, 20,129,070.65 and 8,390,455.47 is: 11,577,652.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,587,764.66 : 20,129,070.65 = 8,390,455.47 : x
  2. Step 2: Convert to fraction form
    14,587,764.66/20,129,070.65 = 8,390,455.47/x
  3. Step 3: Cross multiply
    14,587,764.66x = 20,129,070.65 × 8,390,455.47
  4. Step 4: Simplify right side
    14,587,764.66x = 168,892,070,899,356.69
  5. Step 5: Solve for x
    x = 168,892,070,899,356.69/14,587,764.66
  6. Step 6: Final answer
    x = 11,577,652.56

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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.