Home / 7,889,812.40-11,834,718.60-6,561,209.90

Finding the Fourth Proportional to 7,889,812.40, 11,834,718.60 and 6,561,209.90

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Solution

The fourth proportional to 7,889,812.40, 11,834,718.60 and 6,561,209.90 is: 9,841,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889,812.40 : 11,834,718.60 = 6,561,209.90 : x
  2. Step 2: Convert to fraction form
    7,889,812.40/11,834,718.60 = 6,561,209.90/x
  3. Step 3: Cross multiply
    7,889,812.40x = 11,834,718.60 × 6,561,209.90
  4. Step 4: Simplify right side
    7,889,812.40x = 77,650,072,842,034.14
  5. Step 5: Solve for x
    x = 77,650,072,842,034.14/7,889,812.40
  6. Step 6: Final answer
    x = 9,841,814.85

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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.