Home / 15,688,905.08-21,652,711.40-8,814,715.88

Finding the Fourth Proportional to 15,688,905.08, 21,652,711.40 and 8,814,715.88

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Solution

The fourth proportional to 15,688,905.08, 21,652,711.40 and 8,814,715.88 is: 12,165,444.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,688,905.08 : 21,652,711.40 = 8,814,715.88 : x
  2. Step 2: Convert to fraction form
    15,688,905.08/21,652,711.40 = 8,814,715.88/x
  3. Step 3: Cross multiply
    15,688,905.08x = 21,652,711.40 × 8,814,715.88
  4. Step 4: Simplify right side
    15,688,905.08x = 190,862,499,022,637.03
  5. Step 5: Solve for x
    x = 190,862,499,022,637.03/15,688,905.08
  6. Step 6: Final answer
    x = 12,165,444.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.