Home / 1,260,864,013.20-1,891,296,019.80-680,388,723.60

Finding the Fourth Proportional to 1,260,864,013.20, 1,891,296,019.80 and 680,388,723.60

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Solution

The fourth proportional to 1,260,864,013.20, 1,891,296,019.80 and 680,388,723.60 is: 1,020,583,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,864,013.20 : 1,891,296,019.80 = 680,388,723.60 : x
  2. Step 2: Convert to fraction form
    1,260,864,013.20/1,891,296,019.80 = 680,388,723.60/x
  3. Step 3: Cross multiply
    1,260,864,013.20x = 1,891,296,019.80 × 680,388,723.60
  4. Step 4: Simplify right side
    1,260,864,013.20x = 1,286,816,484,861,482,240
  5. Step 5: Solve for x
    x = 1,286,816,484,861,482,240/1,260,864,013.20
  6. Step 6: Final answer
    x = 1,020,583,085.40

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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.