Home / 143,815,326.31-215,721,688.34-45,447,049.08

Finding the Fourth Proportional to 143,815,326.31, 215,721,688.34 and 45,447,049.08

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Solution

The fourth proportional to 143,815,326.31, 215,721,688.34 and 45,447,049.08 is: 68,170,162.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,815,326.31 : 215,721,688.34 = 45,447,049.08 : x
  2. Step 2: Convert to fraction form
    143,815,326.31/215,721,688.34 = 45,447,049.08/x
  3. Step 3: Cross multiply
    143,815,326.31x = 215,721,688.34 × 45,447,049.08
  4. Step 4: Simplify right side
    143,815,326.31x = 9,803,914,157,608,444
  5. Step 5: Solve for x
    x = 9,803,914,157,608,444/143,815,326.31
  6. Step 6: Final answer
    x = 68,170,162.45

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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.