Home / 113,352,868.31-169,852,155.46-78,876,629.89

Finding the Fourth Proportional to 113,352,868.31, 169,852,155.46 and 78,876,629.89

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Solution

The fourth proportional to 113,352,868.31, 169,852,155.46 and 78,876,629.89 is: 118,191,677.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,352,868.31 : 169,852,155.46 = 78,876,629.89 : x
  2. Step 2: Convert to fraction form
    113,352,868.31/169,852,155.46 = 78,876,629.89/x
  3. Step 3: Cross multiply
    113,352,868.31x = 169,852,155.46 × 78,876,629.89
  4. Step 4: Simplify right side
    113,352,868.31x = 13,397,365,602,548,074
  5. Step 5: Solve for x
    x = 13,397,365,602,548,074/113,352,868.31
  6. Step 6: Final answer
    x = 118,191,677.03

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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.