Home / 12,946,639.33-17,866,274.29-7,145,420.95

Finding the Fourth Proportional to 12,946,639.33, 17,866,274.29 and 7,145,420.95

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Solution

The fourth proportional to 12,946,639.33, 17,866,274.29 and 7,145,420.95 is: 9,860,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946,639.33 : 17,866,274.29 = 7,145,420.95 : x
  2. Step 2: Convert to fraction form
    12,946,639.33/17,866,274.29 = 7,145,420.95/x
  3. Step 3: Cross multiply
    12,946,639.33x = 17,866,274.29 × 7,145,420.95
  4. Step 4: Simplify right side
    12,946,639.33x = 127,662,050,610,212.38
  5. Step 5: Solve for x
    x = 127,662,050,610,212.38/12,946,639.33
  6. Step 6: Final answer
    x = 9,860,632.35

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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.