Home / 20,706,769,819.60-31,060,154,729.40-19,645,588,430.80

Finding the Fourth Proportional to 20,706,769,819.60, 31,060,154,729.40 and 19,645,588,430.80

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Solution

The fourth proportional to 20,706,769,819.60, 31,060,154,729.40 and 19,645,588,430.80 is: 29,468,382,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,706,769,819.60 : 31,060,154,729.40 = 19,645,588,430.80 : x
  2. Step 2: Convert to fraction form
    20,706,769,819.60/31,060,154,729.40 = 19,645,588,430.80/x
  3. Step 3: Cross multiply
    20,706,769,819.60x = 31,060,154,729.40 × 19,645,588,430.80
  4. Step 4: Simplify right side
    20,706,769,819.60x = 610,195,016,410,758,512,640
  5. Step 5: Solve for x
    x = 610,195,016,410,758,512,640/20,706,769,819.60
  6. Step 6: Final answer
    x = 29,468,382,646.20

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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.