Home / 990,960,020.08-1,367,611,975.20-545,001,959.68

Finding the Fourth Proportional to 990,960,020.08, 1,367,611,975.20 and 545,001,959.68

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Solution

The fourth proportional to 990,960,020.08, 1,367,611,975.20 and 545,001,959.68 is: 752,150,633.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,960,020.08 : 1,367,611,975.20 = 545,001,959.68 : x
  2. Step 2: Convert to fraction form
    990,960,020.08/1,367,611,975.20 = 545,001,959.68/x
  3. Step 3: Cross multiply
    990,960,020.08x = 1,367,611,975.20 × 545,001,959.68
  4. Step 4: Simplify right side
    990,960,020.08x = 745,351,206,565,835,520
  5. Step 5: Solve for x
    x = 745,351,206,565,835,520/990,960,020.08
  6. Step 6: Final answer
    x = 752,150,633.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.