Home / 76,629,538.60-114,944,307.90-68,315,439.40

Finding the Fourth Proportional to 76,629,538.60, 114,944,307.90 and 68,315,439.40

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Solution

The fourth proportional to 76,629,538.60, 114,944,307.90 and 68,315,439.40 is: 102,473,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,629,538.60 : 114,944,307.90 = 68,315,439.40 : x
  2. Step 2: Convert to fraction form
    76,629,538.60/114,944,307.90 = 68,315,439.40/x
  3. Step 3: Cross multiply
    76,629,538.60x = 114,944,307.90 × 68,315,439.40
  4. Step 4: Simplify right side
    76,629,538.60x = 7,852,470,900,717,392
  5. Step 5: Solve for x
    x = 7,852,470,900,717,392/76,629,538.60
  6. Step 6: Final answer
    x = 102,473,159.10

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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.