Home / 81,995,708.31-113,148,685.40-47,182,779.87

Finding the Fourth Proportional to 81,995,708.31, 113,148,685.40 and 47,182,779.87

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Solution

The fourth proportional to 81,995,708.31, 113,148,685.40 and 47,182,779.87 is: 65,109,133.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,995,708.31 : 113,148,685.40 = 47,182,779.87 : x
  2. Step 2: Convert to fraction form
    81,995,708.31/113,148,685.40 = 47,182,779.87/x
  3. Step 3: Cross multiply
    81,995,708.31x = 113,148,685.40 × 47,182,779.87
  4. Step 4: Simplify right side
    81,995,708.31x = 5,338,669,515,572,168
  5. Step 5: Solve for x
    x = 5,338,669,515,572,168/81,995,708.31
  6. Step 6: Final answer
    x = 65,109,133.46

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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.