Home / 776,816,378.75-1,165,961,238.39-480,816,123.56

Finding the Fourth Proportional to 776,816,378.75, 1,165,961,238.39 and 480,816,123.56

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Solution

The fourth proportional to 776,816,378.75, 1,165,961,238.39 and 480,816,123.56 is: 721,680,152.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,816,378.75 : 1,165,961,238.39 = 480,816,123.56 : x
  2. Step 2: Convert to fraction form
    776,816,378.75/1,165,961,238.39 = 480,816,123.56/x
  3. Step 3: Cross multiply
    776,816,378.75x = 1,165,961,238.39 × 480,816,123.56
  4. Step 4: Simplify right side
    776,816,378.75x = 560,612,962,862,439,424
  5. Step 5: Solve for x
    x = 560,612,962,862,439,424/776,816,378.75
  6. Step 6: Final answer
    x = 721,680,152.74

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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.