Home / 79,082,198.40-118,641,184.92-42,689,807.76

Finding the Fourth Proportional to 79,082,198.40, 118,641,184.92 and 42,689,807.76

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Solution

The fourth proportional to 79,082,198.40, 118,641,184.92 and 42,689,807.76 is: 64,044,367.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,082,198.40 : 118,641,184.92 = 42,689,807.76 : x
  2. Step 2: Convert to fraction form
    79,082,198.40/118,641,184.92 = 42,689,807.76/x
  3. Step 3: Cross multiply
    79,082,198.40x = 118,641,184.92 × 42,689,807.76
  4. Step 4: Simplify right side
    79,082,198.40x = 5,064,769,376,653,411
  5. Step 5: Solve for x
    x = 5,064,769,376,653,411/79,082,198.40
  6. Step 6: Final answer
    x = 64,044,367.50

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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.