Home / 77,115,965.40-115,862,904.90-57,984,089.40

Finding the Fourth Proportional to 77,115,965.40, 115,862,904.90 and 57,984,089.40

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Solution

The fourth proportional to 77,115,965.40, 115,862,904.90 and 57,984,089.40 is: 87,118,212.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,115,965.40 : 115,862,904.90 = 57,984,089.40 : x
  2. Step 2: Convert to fraction form
    77,115,965.40/115,862,904.90 = 57,984,089.40/x
  3. Step 3: Cross multiply
    77,115,965.40x = 115,862,904.90 × 57,984,089.40
  4. Step 4: Simplify right side
    77,115,965.40x = 6,718,205,035,865,298
  5. Step 5: Solve for x
    x = 6,718,205,035,865,298/77,115,965.40
  6. Step 6: Final answer
    x = 87,118,212.18

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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.