Home / 14,008,985.20-21,006,479.40-6,427,385.20

Finding the Fourth Proportional to 14,008,985.20, 21,006,479.40 and 6,427,385.20

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Solution

The fourth proportional to 14,008,985.20, 21,006,479.40 and 6,427,385.20 is: 9,637,866.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008,985.20 : 21,006,479.40 = 6,427,385.20 : x
  2. Step 2: Convert to fraction form
    14,008,985.20/21,006,479.40 = 6,427,385.20/x
  3. Step 3: Cross multiply
    14,008,985.20x = 21,006,479.40 × 6,427,385.20
  4. Step 4: Simplify right side
    14,008,985.20x = 135,016,734,799,664.88
  5. Step 5: Solve for x
    x = 135,016,734,799,664.88/14,008,985.20
  6. Step 6: Final answer
    x = 9,637,866.90

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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.