Home / 12,428,706.94-18,643,061.76-3,792,852.66

Finding the Fourth Proportional to 12,428,706.94, 18,643,061.76 and 3,792,852.66

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Solution

The fourth proportional to 12,428,706.94, 18,643,061.76 and 3,792,852.66 is: 5,689,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,428,706.94 : 18,643,061.76 = 3,792,852.66 : x
  2. Step 2: Convert to fraction form
    12,428,706.94/18,643,061.76 = 3,792,852.66/x
  3. Step 3: Cross multiply
    12,428,706.94x = 18,643,061.76 × 3,792,852.66
  4. Step 4: Simplify right side
    12,428,706.94x = 70,710,386,386,960.30
  5. Step 5: Solve for x
    x = 70,710,386,386,960.30/12,428,706.94
  6. Step 6: Final answer
    x = 5,689,279.40

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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.