Home / 85,420,312.76-128,146,954.26-27,897,119.48

Finding the Fourth Proportional to 85,420,312.76, 128,146,954.26 and 27,897,119.48

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Solution

The fourth proportional to 85,420,312.76, 128,146,954.26 and 27,897,119.48 is: 41,851,063.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,420,312.76 : 128,146,954.26 = 27,897,119.48 : x
  2. Step 2: Convert to fraction form
    85,420,312.76/128,146,954.26 = 27,897,119.48/x
  3. Step 3: Cross multiply
    85,420,312.76x = 128,146,954.26 × 27,897,119.48
  4. Step 4: Simplify right side
    85,420,312.76x = 3,574,930,893,989,315
  5. Step 5: Solve for x
    x = 3,574,930,893,989,315/85,420,312.76
  6. Step 6: Final answer
    x = 41,851,063.04

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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.