Home / 20,516,781,347.80-30,775,172,021.70-13,986,434,339.80

Finding the Fourth Proportional to 20,516,781,347.80, 30,775,172,021.70 and 13,986,434,339.80

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Solution

The fourth proportional to 20,516,781,347.80, 30,775,172,021.70 and 13,986,434,339.80 is: 20,979,651,509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516,781,347.80 : 30,775,172,021.70 = 13,986,434,339.80 : x
  2. Step 2: Convert to fraction form
    20,516,781,347.80/30,775,172,021.70 = 13,986,434,339.80/x
  3. Step 3: Cross multiply
    20,516,781,347.80x = 30,775,172,021.70 × 13,986,434,339.80
  4. Step 4: Simplify right side
    20,516,781,347.80x = 430,434,922,777,557,073,920
  5. Step 5: Solve for x
    x = 430,434,922,777,557,073,920/20,516,781,347.80
  6. Step 6: Final answer
    x = 20,979,651,509.70

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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.