Home / 80,382,145.80-120,573,218.70-79,710,299.40

Finding the Fourth Proportional to 80,382,145.80, 120,573,218.70 and 79,710,299.40

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Solution

The fourth proportional to 80,382,145.80, 120,573,218.70 and 79,710,299.40 is: 119,565,449.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,382,145.80 : 120,573,218.70 = 79,710,299.40 : x
  2. Step 2: Convert to fraction form
    80,382,145.80/120,573,218.70 = 79,710,299.40/x
  3. Step 3: Cross multiply
    80,382,145.80x = 120,573,218.70 × 79,710,299.40
  4. Step 4: Simplify right side
    80,382,145.80x = 9,610,927,362,198,680
  5. Step 5: Solve for x
    x = 9,610,927,362,198,680/80,382,145.80
  6. Step 6: Final answer
    x = 119,565,449.10

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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.