Home / 87,429,848.36-120,654,870.12-47,738,952.82

Finding the Fourth Proportional to 87,429,848.36, 120,654,870.12 and 47,738,952.82

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Solution

The fourth proportional to 87,429,848.36, 120,654,870.12 and 47,738,952.82 is: 65,880,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,429,848.36 : 120,654,870.12 = 47,738,952.82 : x
  2. Step 2: Convert to fraction form
    87,429,848.36/120,654,870.12 = 47,738,952.82/x
  3. Step 3: Cross multiply
    87,429,848.36x = 120,654,870.12 × 47,738,952.82
  4. Step 4: Simplify right side
    87,429,848.36x = 5,759,937,152,161,908
  5. Step 5: Solve for x
    x = 5,759,937,152,161,908/87,429,848.36
  6. Step 6: Final answer
    x = 65,880,671.88

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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.