Home / 91,109,140.40-136,663,710.60-84,094,119.20

Finding the Fourth Proportional to 91,109,140.40, 136,663,710.60 and 84,094,119.20

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Solution

The fourth proportional to 91,109,140.40, 136,663,710.60 and 84,094,119.20 is: 126,141,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,109,140.40 : 136,663,710.60 = 84,094,119.20 : x
  2. Step 2: Convert to fraction form
    91,109,140.40/136,663,710.60 = 84,094,119.20/x
  3. Step 3: Cross multiply
    91,109,140.40x = 136,663,710.60 × 84,094,119.20
  4. Step 4: Simplify right side
    91,109,140.40x = 11,492,614,369,510,704
  5. Step 5: Solve for x
    x = 11,492,614,369,510,704/91,109,140.40
  6. Step 6: Final answer
    x = 126,141,178.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.