Home / 12,603,966.40-18,915,280.80-8,342,718.40

Finding the Fourth Proportional to 12,603,966.40, 18,915,280.80 and 8,342,718.40

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Solution

The fourth proportional to 12,603,966.40, 18,915,280.80 and 8,342,718.40 is: 12,520,254.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603,966.40 : 18,915,280.80 = 8,342,718.40 : x
  2. Step 2: Convert to fraction form
    12,603,966.40/18,915,280.80 = 8,342,718.40/x
  3. Step 3: Cross multiply
    12,603,966.40x = 18,915,280.80 × 8,342,718.40
  4. Step 4: Simplify right side
    12,603,966.40x = 157,804,861,171,326.72
  5. Step 5: Solve for x
    x = 157,804,861,171,326.72/12,603,966.40
  6. Step 6: Final answer
    x = 12,520,254.03

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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.