Home / 8,587,862.80-12,881,794.20-8,219,280.40

Finding the Fourth Proportional to 8,587,862.80, 12,881,794.20 and 8,219,280.40

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Solution

The fourth proportional to 8,587,862.80, 12,881,794.20 and 8,219,280.40 is: 12,328,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587,862.80 : 12,881,794.20 = 8,219,280.40 : x
  2. Step 2: Convert to fraction form
    8,587,862.80/12,881,794.20 = 8,219,280.40/x
  3. Step 3: Cross multiply
    8,587,862.80x = 12,881,794.20 × 8,219,280.40
  4. Step 4: Simplify right side
    8,587,862.80x = 105,879,078,584,893.67
  5. Step 5: Solve for x
    x = 105,879,078,584,893.67/8,587,862.80
  6. Step 6: Final answer
    x = 12,328,920.60

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1.5x scale

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.