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Finding the Fourth Proportional to 61,128,000.20, 91,692,000.30 and 61,128,000.20

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Solution

The fourth proportional to 61,128,000.20, 91,692,000.30 and 61,128,000.20 is: 91,692,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,128,000.20 : 91,692,000.30 = 61,128,000.20 : x
  2. Step 2: Convert to fraction form
    61,128,000.20/91,692,000.30 = 61,128,000.20/x
  3. Step 3: Cross multiply
    61,128,000.20x = 91,692,000.30 × 61,128,000.20
  4. Step 4: Simplify right side
    61,128,000.20x = 5,604,948,612,676,800
  5. Step 5: Solve for x
    x = 5,604,948,612,676,800/61,128,000.20
  6. Step 6: Final answer
    x = 91,692,000.30

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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.