Home / 86,937,007.80-130,405,511.70-61,427,839.80

Finding the Fourth Proportional to 86,937,007.80, 130,405,511.70 and 61,427,839.80

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Solution

The fourth proportional to 86,937,007.80, 130,405,511.70 and 61,427,839.80 is: 92,141,759.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,937,007.80 : 130,405,511.70 = 61,427,839.80 : x
  2. Step 2: Convert to fraction form
    86,937,007.80/130,405,511.70 = 61,427,839.80/x
  3. Step 3: Cross multiply
    86,937,007.80x = 130,405,511.70 × 61,427,839.80
  4. Step 4: Simplify right side
    86,937,007.80x = 8,010,528,881,744,625
  5. Step 5: Solve for x
    x = 8,010,528,881,744,625/86,937,007.80
  6. Step 6: Final answer
    x = 92,141,759.70

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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.