Home / 28,891,603.28-39,870,157.80-15,838,624.88

Finding the Fourth Proportional to 28,891,603.28, 39,870,157.80 and 15,838,624.88

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Solution

The fourth proportional to 28,891,603.28, 39,870,157.80 and 15,838,624.88 is: 21,857,162.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891,603.28 : 39,870,157.80 = 15,838,624.88 : x
  2. Step 2: Convert to fraction form
    28,891,603.28/39,870,157.80 = 15,838,624.88/x
  3. Step 3: Cross multiply
    28,891,603.28x = 39,870,157.80 × 15,838,624.88
  4. Step 4: Simplify right side
    28,891,603.28x = 631,488,473,300,606
  5. Step 5: Solve for x
    x = 631,488,473,300,606/28,891,603.28
  6. Step 6: Final answer
    x = 21,857,162.69

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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.