Home / 20,448,543,032.55-30,691,669,656.87-10,371,328,488.72

Finding the Fourth Proportional to 20,448,543,032.55, 30,691,669,656.87 and 10,371,328,488.72

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Solution

The fourth proportional to 20,448,543,032.55, 30,691,669,656.87 and 10,371,328,488.72 is: 15,566,555,884.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448,543,032.55 : 30,691,669,656.87 = 10,371,328,488.72 : x
  2. Step 2: Convert to fraction form
    20,448,543,032.55/30,691,669,656.87 = 10,371,328,488.72/x
  3. Step 3: Cross multiply
    20,448,543,032.55x = 30,691,669,656.87 × 10,371,328,488.72
  4. Step 4: Simplify right side
    20,448,543,032.55x = 318,313,387,878,678,986,752
  5. Step 5: Solve for x
    x = 318,313,387,878,678,986,752/20,448,543,032.55
  6. Step 6: Final answer
    x = 15,566,555,884.79

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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.