Home / 90,659,242.72-136,029,017.94-47,518,189.12

Finding the Fourth Proportional to 90,659,242.72, 136,029,017.94 and 47,518,189.12

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Solution

The fourth proportional to 90,659,242.72, 136,029,017.94 and 47,518,189.12 is: 71,298,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,659,242.72 : 136,029,017.94 = 47,518,189.12 : x
  2. Step 2: Convert to fraction form
    90,659,242.72/136,029,017.94 = 47,518,189.12/x
  3. Step 3: Cross multiply
    90,659,242.72x = 136,029,017.94 × 47,518,189.12
  4. Step 4: Simplify right side
    90,659,242.72x = 6,463,852,600,280,792
  5. Step 5: Solve for x
    x = 6,463,852,600,280,792/90,659,242.72
  6. Step 6: Final answer
    x = 71,298,329.95

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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.