Home / 106,290,205.20-159,435,307.80-80,592,080.40

Finding the Fourth Proportional to 106,290,205.20, 159,435,307.80 and 80,592,080.40

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Solution

The fourth proportional to 106,290,205.20, 159,435,307.80 and 80,592,080.40 is: 120,888,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,290,205.20 : 159,435,307.80 = 80,592,080.40 : x
  2. Step 2: Convert to fraction form
    106,290,205.20/159,435,307.80 = 80,592,080.40/x
  3. Step 3: Cross multiply
    106,290,205.20x = 159,435,307.80 × 80,592,080.40
  4. Step 4: Simplify right side
    106,290,205.20x = 12,849,223,144,816,350
  5. Step 5: Solve for x
    x = 12,849,223,144,816,350/106,290,205.20
  6. Step 6: Final answer
    x = 120,888,120.60

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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.