Home / 90,732,771,321.60-136,099,156,982.40-78,502,180,857.60

Finding the Fourth Proportional to 90,732,771,321.60, 136,099,156,982.40 and 78,502,180,857.60

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Solution

The fourth proportional to 90,732,771,321.60, 136,099,156,982.40 and 78,502,180,857.60 is: 117,753,271,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,732,771,321.60 : 136,099,156,982.40 = 78,502,180,857.60 : x
  2. Step 2: Convert to fraction form
    90,732,771,321.60/136,099,156,982.40 = 78,502,180,857.60/x
  3. Step 3: Cross multiply
    90,732,771,321.60x = 136,099,156,982.40 × 78,502,180,857.60
  4. Step 4: Simplify right side
    90,732,771,321.60x = 10,684,080,635,999,258,935,296
  5. Step 5: Solve for x
    x = 10,684,080,635,999,258,935,296/90,732,771,321.60
  6. Step 6: Final answer
    x = 117,753,271,286.40

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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.