Home / 69,921,956.62-96,461,689.09-66,680,166.50

Finding the Fourth Proportional to 69,921,956.62, 96,461,689.09 and 66,680,166.50

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Solution

The fourth proportional to 69,921,956.62, 96,461,689.09 and 66,680,166.50 is: 91,989,437.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,921,956.62 : 96,461,689.09 = 66,680,166.50 : x
  2. Step 2: Convert to fraction form
    69,921,956.62/96,461,689.09 = 66,680,166.50/x
  3. Step 3: Cross multiply
    69,921,956.62x = 96,461,689.09 × 66,680,166.50
  4. Step 4: Simplify right side
    69,921,956.62x = 6,432,081,489,392,434
  5. Step 5: Solve for x
    x = 6,432,081,489,392,434/69,921,956.62
  6. Step 6: Final answer
    x = 91,989,437.94

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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.