Home / 79,712,422.40-119,792,582.40-69,858,675.20

Finding the Fourth Proportional to 79,712,422.40, 119,792,582.40 and 69,858,675.20

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Solution

The fourth proportional to 79,712,422.40, 119,792,582.40 and 69,858,675.20 is: 104,984,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,712,422.40 : 119,792,582.40 = 69,858,675.20 : x
  2. Step 2: Convert to fraction form
    79,712,422.40/119,792,582.40 = 69,858,675.20/x
  3. Step 3: Cross multiply
    79,712,422.40x = 119,792,582.40 × 69,858,675.20
  4. Step 4: Simplify right side
    79,712,422.40x = 8,368,551,105,250,837
  5. Step 5: Solve for x
    x = 8,368,551,105,250,837/79,712,422.40
  6. Step 6: Final answer
    x = 104,984,277.90

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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.