Home / 8,791,920.40-13,187,880.60-7,924,118.80

Finding the Fourth Proportional to 8,791,920.40, 13,187,880.60 and 7,924,118.80

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Solution

The fourth proportional to 8,791,920.40, 13,187,880.60 and 7,924,118.80 is: 11,886,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791,920.40 : 13,187,880.60 = 7,924,118.80 : x
  2. Step 2: Convert to fraction form
    8,791,920.40/13,187,880.60 = 7,924,118.80/x
  3. Step 3: Cross multiply
    8,791,920.40x = 13,187,880.60 × 7,924,118.80
  4. Step 4: Simplify right side
    8,791,920.40x = 104,502,332,594,615.28
  5. Step 5: Solve for x
    x = 104,502,332,594,615.28/8,791,920.40
  6. Step 6: Final answer
    x = 11,886,178.20

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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.