Home / 28,011,451.50-38,687,689.54-18,828,151.02

Finding the Fourth Proportional to 28,011,451.50, 38,687,689.54 and 18,828,151.02

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Solution

The fourth proportional to 28,011,451.50, 38,687,689.54 and 18,828,151.02 is: 26,004,281.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011,451.50 : 38,687,689.54 = 18,828,151.02 : x
  2. Step 2: Convert to fraction form
    28,011,451.50/38,687,689.54 = 18,828,151.02/x
  3. Step 3: Cross multiply
    28,011,451.50x = 38,687,689.54 × 18,828,151.02
  4. Step 4: Simplify right side
    28,011,451.50x = 728,417,661,273,994.25
  5. Step 5: Solve for x
    x = 728,417,661,273,994.25/28,011,451.50
  6. Step 6: Final answer
    x = 26,004,281.19

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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.