Home / 134,528,989.95-185,650,005.12-72,649,323.06

Finding the Fourth Proportional to 134,528,989.95, 185,650,005.12 and 72,649,323.06

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Solution

The fourth proportional to 134,528,989.95, 185,650,005.12 and 72,649,323.06 is: 100,256,065.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,528,989.95 : 185,650,005.12 = 72,649,323.06 : x
  2. Step 2: Convert to fraction form
    134,528,989.95/185,650,005.12 = 72,649,323.06/x
  3. Step 3: Cross multiply
    134,528,989.95x = 185,650,005.12 × 72,649,323.06
  4. Step 4: Simplify right side
    134,528,989.95x = 13,487,347,198,053,534
  5. Step 5: Solve for x
    x = 13,487,347,198,053,534/134,528,989.95
  6. Step 6: Final answer
    x = 100,256,065.28

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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.