Home / 91,809,025.20-137,713,537.80-79,851,602.70

Finding the Fourth Proportional to 91,809,025.20, 137,713,537.80 and 79,851,602.70

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Solution

The fourth proportional to 91,809,025.20, 137,713,537.80 and 79,851,602.70 is: 119,777,404.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,809,025.20 : 137,713,537.80 = 79,851,602.70 : x
  2. Step 2: Convert to fraction form
    91,809,025.20/137,713,537.80 = 79,851,602.70/x
  3. Step 3: Cross multiply
    91,809,025.20x = 137,713,537.80 × 79,851,602.70
  4. Step 4: Simplify right side
    91,809,025.20x = 10,996,646,706,817,034
  5. Step 5: Solve for x
    x = 10,996,646,706,817,034/91,809,025.20
  6. Step 6: Final answer
    x = 119,777,404.05

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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.