Home / 87,309,213.40-130,963,820.10-29,803,360.60

Finding the Fourth Proportional to 87,309,213.40, 130,963,820.10 and 29,803,360.60

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Solution

The fourth proportional to 87,309,213.40, 130,963,820.10 and 29,803,360.60 is: 44,705,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,309,213.40 : 130,963,820.10 = 29,803,360.60 : x
  2. Step 2: Convert to fraction form
    87,309,213.40/130,963,820.10 = 29,803,360.60/x
  3. Step 3: Cross multiply
    87,309,213.40x = 130,963,820.10 × 29,803,360.60
  4. Step 4: Simplify right side
    87,309,213.40x = 3,903,161,955,993,828
  5. Step 5: Solve for x
    x = 3,903,161,955,993,828/87,309,213.40
  6. Step 6: Final answer
    x = 44,705,040.90

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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.