Home / 12,520,312.61-18,781,737.36-4,321,886.27

Finding the Fourth Proportional to 12,520,312.61, 18,781,737.36 and 4,321,886.27

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Solution

The fourth proportional to 12,520,312.61, 18,781,737.36 and 4,321,886.27 is: 6,483,267.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520,312.61 : 18,781,737.36 = 4,321,886.27 : x
  2. Step 2: Convert to fraction form
    12,520,312.61/18,781,737.36 = 4,321,886.27/x
  3. Step 3: Cross multiply
    12,520,312.61x = 18,781,737.36 × 4,321,886.27
  4. Step 4: Simplify right side
    12,520,312.61x = 81,172,532,729,021.34
  5. Step 5: Solve for x
    x = 81,172,532,729,021.34/12,520,312.61
  6. Step 6: Final answer
    x = 6,483,267.25

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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.