Home / 120,584,813.10-180,877,219.65-74,668,310.70

Finding the Fourth Proportional to 120,584,813.10, 180,877,219.65 and 74,668,310.70

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Solution

The fourth proportional to 120,584,813.10, 180,877,219.65 and 74,668,310.70 is: 112,002,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,584,813.10 : 180,877,219.65 = 74,668,310.70 : x
  2. Step 2: Convert to fraction form
    120,584,813.10/180,877,219.65 = 74,668,310.70/x
  3. Step 3: Cross multiply
    120,584,813.10x = 180,877,219.65 × 74,668,310.70
  4. Step 4: Simplify right side
    120,584,813.10x = 13,505,796,435,378,346
  5. Step 5: Solve for x
    x = 13,505,796,435,378,346/120,584,813.10
  6. Step 6: Final answer
    x = 112,002,466.05

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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.