Home / 90,440,368.38-124,807,769.82-50,742,418.92

Finding the Fourth Proportional to 90,440,368.38, 124,807,769.82 and 50,742,418.92

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Solution

The fourth proportional to 90,440,368.38, 124,807,769.82 and 50,742,418.92 is: 70,024,572.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,440,368.38 : 124,807,769.82 = 50,742,418.92 : x
  2. Step 2: Convert to fraction form
    90,440,368.38/124,807,769.82 = 50,742,418.92/x
  3. Step 3: Cross multiply
    90,440,368.38x = 124,807,769.82 × 50,742,418.92
  4. Step 4: Simplify right side
    90,440,368.38x = 6,333,048,140,677,373
  5. Step 5: Solve for x
    x = 6,333,048,140,677,373/90,440,368.38
  6. Step 6: Final answer
    x = 70,024,572.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.