Home / 130,695,987.31-196,065,276.40-38,589,036.11

Finding the Fourth Proportional to 130,695,987.31, 196,065,276.40 and 38,589,036.11

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Solution

The fourth proportional to 130,695,987.31, 196,065,276.40 and 38,589,036.11 is: 57,889,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,695,987.31 : 196,065,276.40 = 38,589,036.11 : x
  2. Step 2: Convert to fraction form
    130,695,987.31/196,065,276.40 = 38,589,036.11/x
  3. Step 3: Cross multiply
    130,695,987.31x = 196,065,276.40 × 38,589,036.11
  4. Step 4: Simplify right side
    130,695,987.31x = 7,565,970,030,330,096
  5. Step 5: Solve for x
    x = 7,565,970,030,330,096/130,695,987.31
  6. Step 6: Final answer
    x = 57,889,841.81

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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.