Home / 123,781,710.11-170,822,855.45-68,029,106.72

Finding the Fourth Proportional to 123,781,710.11, 170,822,855.45 and 68,029,106.72

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Solution

The fourth proportional to 123,781,710.11, 170,822,855.45 and 68,029,106.72 is: 93,882,418.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,781,710.11 : 170,822,855.45 = 68,029,106.72 : x
  2. Step 2: Convert to fraction form
    123,781,710.11/170,822,855.45 = 68,029,106.72/x
  3. Step 3: Cross multiply
    123,781,710.11x = 170,822,855.45 × 68,029,106.72
  4. Step 4: Simplify right side
    123,781,710.11x = 11,620,926,263,283,038
  5. Step 5: Solve for x
    x = 11,620,926,263,283,038/123,781,710.11
  6. Step 6: Final answer
    x = 93,882,418.11

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1.5x scale

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.