Home / 260,756,096.80-391,134,145.20-79,012,314.40

Finding the Fourth Proportional to 260,756,096.80, 391,134,145.20 and 79,012,314.40

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Solution

The fourth proportional to 260,756,096.80, 391,134,145.20 and 79,012,314.40 is: 118,518,471.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,756,096.80 : 391,134,145.20 = 79,012,314.40 : x
  2. Step 2: Convert to fraction form
    260,756,096.80/391,134,145.20 = 79,012,314.40/x
  3. Step 3: Cross multiply
    260,756,096.80x = 391,134,145.20 × 79,012,314.40
  4. Step 4: Simplify right side
    260,756,096.80x = 30,904,414,053,117,652
  5. Step 5: Solve for x
    x = 30,904,414,053,117,652/260,756,096.80
  6. Step 6: Final answer
    x = 118,518,471.60

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1.5x scale

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.