Home / 28,386,727.20-42,579,478.04-7,915,901.49

Finding the Fourth Proportional to 28,386,727.20, 42,579,478.04 and 7,915,901.49

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Solution

The fourth proportional to 28,386,727.20, 42,579,478.04 and 7,915,901.49 is: 11,873,681.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386,727.20 : 42,579,478.04 = 7,915,901.49 : x
  2. Step 2: Convert to fraction form
    28,386,727.20/42,579,478.04 = 7,915,901.49/x
  3. Step 3: Cross multiply
    28,386,727.20x = 42,579,478.04 × 7,915,901.49
  4. Step 4: Simplify right side
    28,386,727.20x = 337,054,953,620,678.75
  5. Step 5: Solve for x
    x = 337,054,953,620,678.75/28,386,727.20
  6. Step 6: Final answer
    x = 11,873,681.36

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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.