Home / 42,378,520.78-63,535,448.29-19,333,338.83

Finding the Fourth Proportional to 42,378,520.78, 63,535,448.29 and 19,333,338.83

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Solution

The fourth proportional to 42,378,520.78, 63,535,448.29 and 19,333,338.83 is: 28,985,257.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,378,520.78 : 63,535,448.29 = 19,333,338.83 : x
  2. Step 2: Convert to fraction form
    42,378,520.78/63,535,448.29 = 19,333,338.83/x
  3. Step 3: Cross multiply
    42,378,520.78x = 63,535,448.29 × 19,333,338.83
  4. Step 4: Simplify right side
    42,378,520.78x = 1,228,352,349,506,514
  5. Step 5: Solve for x
    x = 1,228,352,349,506,514/42,378,520.78
  6. Step 6: Final answer
    x = 28,985,257.79

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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.