Home / 20,158,176,189.60-30,237,264,284.40-18,561,869,143.20

Finding the Fourth Proportional to 20,158,176,189.60, 30,237,264,284.40 and 18,561,869,143.20

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Solution

The fourth proportional to 20,158,176,189.60, 30,237,264,284.40 and 18,561,869,143.20 is: 27,842,803,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158,176,189.60 : 30,237,264,284.40 = 18,561,869,143.20 : x
  2. Step 2: Convert to fraction form
    20,158,176,189.60/30,237,264,284.40 = 18,561,869,143.20/x
  3. Step 3: Cross multiply
    20,158,176,189.60x = 30,237,264,284.40 × 18,561,869,143.20
  4. Step 4: Simplify right side
    20,158,176,189.60x = 561,260,142,895,387,836,416
  5. Step 5: Solve for x
    x = 561,260,142,895,387,836,416/20,158,176,189.60
  6. Step 6: Final answer
    x = 27,842,803,714.80

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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.