Home / 15,515,454.50-21,411,327.12-8,992,867.36

Finding the Fourth Proportional to 15,515,454.50, 21,411,327.12 and 8,992,867.36

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Solution

The fourth proportional to 15,515,454.50, 21,411,327.12 and 8,992,867.36 is: 12,410,156.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515,454.50 : 21,411,327.12 = 8,992,867.36 : x
  2. Step 2: Convert to fraction form
    15,515,454.50/21,411,327.12 = 8,992,867.36/x
  3. Step 3: Cross multiply
    15,515,454.50x = 21,411,327.12 × 8,992,867.36
  4. Step 4: Simplify right side
    15,515,454.50x = 192,549,224,791,730.81
  5. Step 5: Solve for x
    x = 192,549,224,791,730.81/15,515,454.50
  6. Step 6: Final answer
    x = 12,410,156.90

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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.