Home / 130,687,343.20-180,214,856.40-86,619,040.48

Finding the Fourth Proportional to 130,687,343.20, 180,214,856.40 and 86,619,040.48

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Solution

The fourth proportional to 130,687,343.20, 180,214,856.40 and 86,619,040.48 is: 119,445,675.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,687,343.20 : 180,214,856.40 = 86,619,040.48 : x
  2. Step 2: Convert to fraction form
    130,687,343.20/180,214,856.40 = 86,619,040.48/x
  3. Step 3: Cross multiply
    130,687,343.20x = 180,214,856.40 × 86,619,040.48
  4. Step 4: Simplify right side
    130,687,343.20x = 15,610,037,941,608,988
  5. Step 5: Solve for x
    x = 15,610,037,941,608,988/130,687,343.20
  6. Step 6: Final answer
    x = 119,445,675.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.