Home / 78,736,902.80-118,231,325.40-59,589,280.40

Finding the Fourth Proportional to 78,736,902.80, 118,231,325.40 and 59,589,280.40

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Solution

The fourth proportional to 78,736,902.80, 118,231,325.40 and 59,589,280.40 is: 89,479,257.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,736,902.80 : 118,231,325.40 = 59,589,280.40 : x
  2. Step 2: Convert to fraction form
    78,736,902.80/118,231,325.40 = 59,589,280.40/x
  3. Step 3: Cross multiply
    78,736,902.80x = 118,231,325.40 × 59,589,280.40
  4. Step 4: Simplify right side
    78,736,902.80x = 7,045,319,601,324,242
  5. Step 5: Solve for x
    x = 7,045,319,601,324,242/78,736,902.80
  6. Step 6: Final answer
    x = 89,479,257.51

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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.