Home / 28,178,005.20-42,265,388.40-16,736,150.40

Finding the Fourth Proportional to 28,178,005.20, 42,265,388.40 and 16,736,150.40

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Solution

The fourth proportional to 28,178,005.20, 42,265,388.40 and 16,736,150.40 is: 25,103,263.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,178,005.20 : 42,265,388.40 = 16,736,150.40 : x
  2. Step 2: Convert to fraction form
    28,178,005.20/42,265,388.40 = 16,736,150.40/x
  3. Step 3: Cross multiply
    28,178,005.20x = 42,265,388.40 × 16,736,150.40
  4. Step 4: Simplify right side
    28,178,005.20x = 707,359,896,976,815.38
  5. Step 5: Solve for x
    x = 707,359,896,976,815.38/28,178,005.20
  6. Step 6: Final answer
    x = 25,103,263.77

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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.