Home / 125,880,476.57-172,456,868.07-121,162,510.48

Finding the Fourth Proportional to 125,880,476.57, 172,456,868.07 and 121,162,510.48

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Solution

The fourth proportional to 125,880,476.57, 172,456,868.07 and 121,162,510.48 is: 165,993,231.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,880,476.57 : 172,456,868.07 = 121,162,510.48 : x
  2. Step 2: Convert to fraction form
    125,880,476.57/172,456,868.07 = 121,162,510.48/x
  3. Step 3: Cross multiply
    125,880,476.57x = 172,456,868.07 × 121,162,510.48
  4. Step 4: Simplify right side
    125,880,476.57x = 20,895,307,084,772,428
  5. Step 5: Solve for x
    x = 20,895,307,084,772,428/125,880,476.57
  6. Step 6: Final answer
    x = 165,993,231.46

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.