Home / 86,937,964.80-130,406,947.20-61,428,796.80

Finding the Fourth Proportional to 86,937,964.80, 130,406,947.20 and 61,428,796.80

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Solution

The fourth proportional to 86,937,964.80, 130,406,947.20 and 61,428,796.80 is: 92,143,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,937,964.80 : 130,406,947.20 = 61,428,796.80 : x
  2. Step 2: Convert to fraction form
    86,937,964.80/130,406,947.20 = 61,428,796.80/x
  3. Step 3: Cross multiply
    86,937,964.80x = 130,406,947.20 × 61,428,796.80
  4. Step 4: Simplify right side
    86,937,964.80x = 8,010,741,860,857,129
  5. Step 5: Solve for x
    x = 8,010,741,860,857,129/86,937,964.80
  6. Step 6: Final answer
    x = 92,143,195.20

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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.