Home / 28,242,434.24-42,377,959.20-12,888,022.40

Finding the Fourth Proportional to 28,242,434.24, 42,377,959.20 and 12,888,022.40

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Solution

The fourth proportional to 28,242,434.24, 42,377,959.20 and 12,888,022.40 is: 19,338,562.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242,434.24 : 42,377,959.20 = 12,888,022.40 : x
  2. Step 2: Convert to fraction form
    28,242,434.24/42,377,959.20 = 12,888,022.40/x
  3. Step 3: Cross multiply
    28,242,434.24x = 42,377,959.20 × 12,888,022.40
  4. Step 4: Simplify right side
    28,242,434.24x = 546,168,087,435,886.12
  5. Step 5: Solve for x
    x = 546,168,087,435,886.12/28,242,434.24
  6. Step 6: Final answer
    x = 19,338,562.77

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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.