Home / 20,702,017,921.60-31,053,026,882.40-8,289,256,772.80

Finding the Fourth Proportional to 20,702,017,921.60, 31,053,026,882.40 and 8,289,256,772.80

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Solution

The fourth proportional to 20,702,017,921.60, 31,053,026,882.40 and 8,289,256,772.80 is: 12,433,885,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,017,921.60 : 31,053,026,882.40 = 8,289,256,772.80 : x
  2. Step 2: Convert to fraction form
    20,702,017,921.60/31,053,026,882.40 = 8,289,256,772.80/x
  3. Step 3: Cross multiply
    20,702,017,921.60x = 31,053,026,882.40 × 8,289,256,772.80
  4. Step 4: Simplify right side
    20,702,017,921.60x = 257,406,513,400,874,696,704
  5. Step 5: Solve for x
    x = 257,406,513,400,874,696,704/20,702,017,921.60
  6. Step 6: Final answer
    x = 12,433,885,159.20

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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.