Home / 85,293,119.40-127,939,679.10-84,655,390.20

Finding the Fourth Proportional to 85,293,119.40, 127,939,679.10 and 84,655,390.20

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Solution

The fourth proportional to 85,293,119.40, 127,939,679.10 and 84,655,390.20 is: 126,983,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293,119.40 : 127,939,679.10 = 84,655,390.20 : x
  2. Step 2: Convert to fraction form
    85,293,119.40/127,939,679.10 = 84,655,390.20/x
  3. Step 3: Cross multiply
    85,293,119.40x = 127,939,679.10 × 84,655,390.20
  4. Step 4: Simplify right side
    85,293,119.40x = 10,830,783,456,273,284
  5. Step 5: Solve for x
    x = 10,830,783,456,273,284/85,293,119.40
  6. Step 6: Final answer
    x = 126,983,085.30

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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.