Home / 77,264,135.40-115,910,199.90-38,828,922.60

Finding the Fourth Proportional to 77,264,135.40, 115,910,199.90 and 38,828,922.60

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Solution

The fourth proportional to 77,264,135.40, 115,910,199.90 and 38,828,922.60 is: 58,250,417.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,264,135.40 : 115,910,199.90 = 38,828,922.60 : x
  2. Step 2: Convert to fraction form
    77,264,135.40/115,910,199.90 = 38,828,922.60/x
  3. Step 3: Cross multiply
    77,264,135.40x = 115,910,199.90 × 38,828,922.60
  4. Step 4: Simplify right side
    77,264,135.40x = 4,500,668,180,467,628
  5. Step 5: Solve for x
    x = 4,500,668,180,467,628/77,264,135.40
  6. Step 6: Final answer
    x = 58,250,417.96

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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.