Home / 82,950,861.40-124,426,292.10-78,247,936.60

Finding the Fourth Proportional to 82,950,861.40, 124,426,292.10 and 78,247,936.60

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Solution

The fourth proportional to 82,950,861.40, 124,426,292.10 and 78,247,936.60 is: 117,371,904.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,950,861.40 : 124,426,292.10 = 78,247,936.60 : x
  2. Step 2: Convert to fraction form
    82,950,861.40/124,426,292.10 = 78,247,936.60/x
  3. Step 3: Cross multiply
    82,950,861.40x = 124,426,292.10 × 78,247,936.60
  4. Step 4: Simplify right side
    82,950,861.40x = 9,736,100,615,613,880
  5. Step 5: Solve for x
    x = 9,736,100,615,613,880/82,950,861.40
  6. Step 6: Final answer
    x = 117,371,904.90

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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.