Home / 20,762,856.10-31,146,616.95-6,385,809.70

Finding the Fourth Proportional to 20,762,856.10, 31,146,616.95 and 6,385,809.70

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Solution

The fourth proportional to 20,762,856.10, 31,146,616.95 and 6,385,809.70 is: 9,579,432.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762,856.10 : 31,146,616.95 = 6,385,809.70 : x
  2. Step 2: Convert to fraction form
    20,762,856.10/31,146,616.95 = 6,385,809.70/x
  3. Step 3: Cross multiply
    20,762,856.10x = 31,146,616.95 × 6,385,809.70
  4. Step 4: Simplify right side
    20,762,856.10x = 198,896,368,641,494.41
  5. Step 5: Solve for x
    x = 198,896,368,641,494.41/20,762,856.10
  6. Step 6: Final answer
    x = 9,579,432.02

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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.