Home / 131,598,678.51-181,608,947.11-72,062,475.03

Finding the Fourth Proportional to 131,598,678.51, 181,608,947.11 and 72,062,475.03

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Solution

The fourth proportional to 131,598,678.51, 181,608,947.11 and 72,062,475.03 is: 99,447,732.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,598,678.51 : 181,608,947.11 = 72,062,475.03 : x
  2. Step 2: Convert to fraction form
    131,598,678.51/181,608,947.11 = 72,062,475.03/x
  3. Step 3: Cross multiply
    131,598,678.51x = 181,608,947.11 × 72,062,475.03
  4. Step 4: Simplify right side
    131,598,678.51x = 13,087,190,216,338,966
  5. Step 5: Solve for x
    x = 13,087,190,216,338,966/131,598,678.51
  6. Step 6: Final answer
    x = 99,447,732.79

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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.