Home / 10,921,104,007.20-16,381,656,010.80-10,614,993,991.20

Finding the Fourth Proportional to 10,921,104,007.20, 16,381,656,010.80 and 10,614,993,991.20

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Solution

The fourth proportional to 10,921,104,007.20, 16,381,656,010.80 and 10,614,993,991.20 is: 15,922,490,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921,104,007.20 : 16,381,656,010.80 = 10,614,993,991.20 : x
  2. Step 2: Convert to fraction form
    10,921,104,007.20/16,381,656,010.80 = 10,614,993,991.20/x
  3. Step 3: Cross multiply
    10,921,104,007.20x = 16,381,656,010.80 × 10,614,993,991.20
  4. Step 4: Simplify right side
    10,921,104,007.20x = 173,891,180,120,547,360,768
  5. Step 5: Solve for x
    x = 173,891,180,120,547,360,768/10,921,104,007.20
  6. Step 6: Final answer
    x = 15,922,490,986.80

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Double scale
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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.