Home / 210,161,047.20-314,710,729.20-137,966,589.60

Finding the Fourth Proportional to 210,161,047.20, 314,710,729.20 and 137,966,589.60

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Solution

The fourth proportional to 210,161,047.20, 314,710,729.20 and 137,966,589.60 is: 206,601,397.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,161,047.20 : 314,710,729.20 = 137,966,589.60 : x
  2. Step 2: Convert to fraction form
    210,161,047.20/314,710,729.20 = 137,966,589.60/x
  3. Step 3: Cross multiply
    210,161,047.20x = 314,710,729.20 × 137,966,589.60
  4. Step 4: Simplify right side
    210,161,047.20x = 43,419,566,018,253,136
  5. Step 5: Solve for x
    x = 43,419,566,018,253,136/210,161,047.20
  6. Step 6: Final answer
    x = 206,601,397.34

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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.