Home / 87,117,586.66-120,218,586.69-47,424,292.12

Finding the Fourth Proportional to 87,117,586.66, 120,218,586.69 and 47,424,292.12

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Solution

The fourth proportional to 87,117,586.66, 120,218,586.69 and 47,424,292.12 is: 65,443,518.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,117,586.66 : 120,218,586.69 = 47,424,292.12 : x
  2. Step 2: Convert to fraction form
    87,117,586.66/120,218,586.69 = 47,424,292.12/x
  3. Step 3: Cross multiply
    87,117,586.66x = 120,218,586.69 × 47,424,292.12
  4. Step 4: Simplify right side
    87,117,586.66x = 5,701,281,373,440,103
  5. Step 5: Solve for x
    x = 5,701,281,373,440,103/87,117,586.66
  6. Step 6: Final answer
    x = 65,443,518.26

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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.