Home / 131,120,795.26-180,941,955.06-72,382,199.68

Finding the Fourth Proportional to 131,120,795.26, 180,941,955.06 and 72,382,199.68

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Solution

The fourth proportional to 131,120,795.26, 180,941,955.06 and 72,382,199.68 is: 99,884,817.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,120,795.26 : 180,941,955.06 = 72,382,199.68 : x
  2. Step 2: Convert to fraction form
    131,120,795.26/180,941,955.06 = 72,382,199.68/x
  3. Step 3: Cross multiply
    131,120,795.26x = 180,941,955.06 × 72,382,199.68
  4. Step 4: Simplify right side
    131,120,795.26x = 13,096,976,721,642,508
  5. Step 5: Solve for x
    x = 13,096,976,721,642,508/131,120,795.26
  6. Step 6: Final answer
    x = 99,884,817.63

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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.