Home / 262,626,277.60-393,939,416.40-80,929,151.20

Finding the Fourth Proportional to 262,626,277.60, 393,939,416.40 and 80,929,151.20

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Solution

The fourth proportional to 262,626,277.60, 393,939,416.40 and 80,929,151.20 is: 121,393,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,626,277.60 : 393,939,416.40 = 80,929,151.20 : x
  2. Step 2: Convert to fraction form
    262,626,277.60/393,939,416.40 = 80,929,151.20/x
  3. Step 3: Cross multiply
    262,626,277.60x = 393,939,416.40 × 80,929,151.20
  4. Step 4: Simplify right side
    262,626,277.60x = 31,881,182,593,475,360
  5. Step 5: Solve for x
    x = 31,881,182,593,475,360/262,626,277.60
  6. Step 6: Final answer
    x = 121,393,726.80

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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.