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Finding the Fourth Proportional to 87,128,435,000.20, 130,692,652,500.30 and 87,128,435,000.20

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Solution

The fourth proportional to 87,128,435,000.20, 130,692,652,500.30 and 87,128,435,000.20 is: 130,692,652,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,128,435,000.20 : 130,692,652,500.30 = 87,128,435,000.20 : x
  2. Step 2: Convert to fraction form
    87,128,435,000.20/130,692,652,500.30 = 87,128,435,000.20/x
  3. Step 3: Cross multiply
    87,128,435,000.20x = 130,692,652,500.30 × 87,128,435,000.20
  4. Step 4: Simplify right side
    87,128,435,000.20x = 11,387,046,278,376,114,356,224
  5. Step 5: Solve for x
    x = 11,387,046,278,376,114,356,224/87,128,435,000.20
  6. Step 6: Final answer
    x = 130,692,652,500.30

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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.