Home / 21,060,092.70-31,590,139.05-12,550,038.30

Finding the Fourth Proportional to 21,060,092.70, 31,590,139.05 and 12,550,038.30

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Solution

The fourth proportional to 21,060,092.70, 31,590,139.05 and 12,550,038.30 is: 18,825,057.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060,092.70 : 31,590,139.05 = 12,550,038.30 : x
  2. Step 2: Convert to fraction form
    21,060,092.70/31,590,139.05 = 12,550,038.30/x
  3. Step 3: Cross multiply
    21,060,092.70x = 31,590,139.05 × 12,550,038.30
  4. Step 4: Simplify right side
    21,060,092.70x = 396,457,454,979,825.62
  5. Step 5: Solve for x
    x = 396,457,454,979,825.62/21,060,092.70
  6. Step 6: Final answer
    x = 18,825,057.45

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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.