Home / 78,691,491.40-118,037,237.10-49,993,677.40

Finding the Fourth Proportional to 78,691,491.40, 118,037,237.10 and 49,993,677.40

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Solution

The fourth proportional to 78,691,491.40, 118,037,237.10 and 49,993,677.40 is: 74,990,516.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,691,491.40 : 118,037,237.10 = 49,993,677.40 : x
  2. Step 2: Convert to fraction form
    78,691,491.40/118,037,237.10 = 49,993,677.40/x
  3. Step 3: Cross multiply
    78,691,491.40x = 118,037,237.10 × 49,993,677.40
  4. Step 4: Simplify right side
    78,691,491.40x = 5,901,115,552,764,711
  5. Step 5: Solve for x
    x = 5,901,115,552,764,711/78,691,491.40
  6. Step 6: Final answer
    x = 74,990,516.10

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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.