Home / 12,480,801.30-18,683,877.15-7,429,511.70

Finding the Fourth Proportional to 12,480,801.30, 18,683,877.15 and 7,429,511.70

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Solution

The fourth proportional to 12,480,801.30, 18,683,877.15 and 7,429,511.70 is: 11,122,049.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480,801.30 : 18,683,877.15 = 7,429,511.70 : x
  2. Step 2: Convert to fraction form
    12,480,801.30/18,683,877.15 = 7,429,511.70/x
  3. Step 3: Cross multiply
    12,480,801.30x = 18,683,877.15 × 7,429,511.70
  4. Step 4: Simplify right side
    12,480,801.30x = 138,812,083,887,287.64
  5. Step 5: Solve for x
    x = 138,812,083,887,287.64/12,480,801.30
  6. Step 6: Final answer
    x = 11,122,049.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.