Home / 85,205,590.60-127,738,401.90-36,720,675.40

Finding the Fourth Proportional to 85,205,590.60, 127,738,401.90 and 36,720,675.40

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Solution

The fourth proportional to 85,205,590.60, 127,738,401.90 and 36,720,675.40 is: 55,050,852.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,205,590.60 : 127,738,401.90 = 36,720,675.40 : x
  2. Step 2: Convert to fraction form
    85,205,590.60/127,738,401.90 = 36,720,675.40/x
  3. Step 3: Cross multiply
    85,205,590.60x = 127,738,401.90 × 36,720,675.40
  4. Step 4: Simplify right side
    85,205,590.60x = 4,690,640,392,284,643
  5. Step 5: Solve for x
    x = 4,690,640,392,284,643/85,205,590.60
  6. Step 6: Final answer
    x = 55,050,852.41

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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.