Home / 21,280,779.28-31,925,652.94-6,902,726.10

Finding the Fourth Proportional to 21,280,779.28, 31,925,652.94 and 6,902,726.10

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Solution

The fourth proportional to 21,280,779.28, 31,925,652.94 and 6,902,726.10 is: 10,355,543.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280,779.28 : 31,925,652.94 = 6,902,726.10 : x
  2. Step 2: Convert to fraction form
    21,280,779.28/31,925,652.94 = 6,902,726.10/x
  3. Step 3: Cross multiply
    21,280,779.28x = 31,925,652.94 × 6,902,726.10
  4. Step 4: Simplify right side
    21,280,779.28x = 220,374,037,808,479.72
  5. Step 5: Solve for x
    x = 220,374,037,808,479.72/21,280,779.28
  6. Step 6: Final answer
    x = 10,355,543.61

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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.