Home / 20,516,781,360.80-30,775,172,041.20-13,986,434,352.80

Finding the Fourth Proportional to 20,516,781,360.80, 30,775,172,041.20 and 13,986,434,352.80

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Solution

The fourth proportional to 20,516,781,360.80, 30,775,172,041.20 and 13,986,434,352.80 is: 20,979,651,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516,781,360.80 : 30,775,172,041.20 = 13,986,434,352.80 : x
  2. Step 2: Convert to fraction form
    20,516,781,360.80/30,775,172,041.20 = 13,986,434,352.80/x
  3. Step 3: Cross multiply
    20,516,781,360.80x = 30,775,172,041.20 × 13,986,434,352.80
  4. Step 4: Simplify right side
    20,516,781,360.80x = 430,434,923,450,369,769,472
  5. Step 5: Solve for x
    x = 430,434,923,450,369,769,472/20,516,781,360.80
  6. Step 6: Final answer
    x = 20,979,651,529.20

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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.