Home / 15,784,102.50-21,785,701.42-9,259,827.90

Finding the Fourth Proportional to 15,784,102.50, 21,785,701.42 and 9,259,827.90

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Solution

The fourth proportional to 15,784,102.50, 21,785,701.42 and 9,259,827.90 is: 12,780,697.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784,102.50 : 21,785,701.42 = 9,259,827.90 : x
  2. Step 2: Convert to fraction form
    15,784,102.50/21,785,701.42 = 9,259,827.90/x
  3. Step 3: Cross multiply
    15,784,102.50x = 21,785,701.42 × 9,259,827.90
  4. Step 4: Simplify right side
    15,784,102.50x = 201,731,845,829,985.66
  5. Step 5: Solve for x
    x = 201,731,845,829,985.66/15,784,102.50
  6. Step 6: Final answer
    x = 12,780,697.91

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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.