Home / 86,937,793.80-130,406,690.70-61,428,625.80

Finding the Fourth Proportional to 86,937,793.80, 130,406,690.70 and 61,428,625.80

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Solution

The fourth proportional to 86,937,793.80, 130,406,690.70 and 61,428,625.80 is: 92,142,938.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,937,793.80 : 130,406,690.70 = 61,428,625.80 : x
  2. Step 2: Convert to fraction form
    86,937,793.80/130,406,690.70 = 61,428,625.80/x
  3. Step 3: Cross multiply
    86,937,793.80x = 130,406,690.70 × 61,428,625.80
  4. Step 4: Simplify right side
    86,937,793.80x = 8,010,703,804,826,640
  5. Step 5: Solve for x
    x = 8,010,703,804,826,640/86,937,793.80
  6. Step 6: Final answer
    x = 92,142,938.70

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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.