Home / 143,815,326.81-215,721,689.09-45,447,049.58

Finding the Fourth Proportional to 143,815,326.81, 215,721,689.09 and 45,447,049.58

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Solution

The fourth proportional to 143,815,326.81, 215,721,689.09 and 45,447,049.58 is: 68,170,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,815,326.81 : 215,721,689.09 = 45,447,049.58 : x
  2. Step 2: Convert to fraction form
    143,815,326.81/215,721,689.09 = 45,447,049.58/x
  3. Step 3: Cross multiply
    143,815,326.81x = 215,721,689.09 × 45,447,049.58
  4. Step 4: Simplify right side
    143,815,326.81x = 9,803,914,299,554,574
  5. Step 5: Solve for x
    x = 9,803,914,299,554,574/143,815,326.81
  6. Step 6: Final answer
    x = 68,170,163.20

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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.