Home / 21,480,931.95-29,643,272.08-11,691,591.90

Finding the Fourth Proportional to 21,480,931.95, 29,643,272.08 and 11,691,591.90

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Solution

The fourth proportional to 21,480,931.95, 29,643,272.08 and 11,691,591.90 is: 16,134,171.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,480,931.95 : 29,643,272.08 = 11,691,591.90 : x
  2. Step 2: Convert to fraction form
    21,480,931.95/29,643,272.08 = 11,691,591.90/x
  3. Step 3: Cross multiply
    21,480,931.95x = 29,643,272.08 × 11,691,591.90
  4. Step 4: Simplify right side
    21,480,931.95x = 346,577,039,740,024.12
  5. Step 5: Solve for x
    x = 346,577,039,740,024.12/21,480,931.95
  6. Step 6: Final answer
    x = 16,134,171.49

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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.