Home / 11,153,385.20-16,730,077.80-8,319,033.20

Finding the Fourth Proportional to 11,153,385.20, 16,730,077.80 and 8,319,033.20

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Solution

The fourth proportional to 11,153,385.20, 16,730,077.80 and 8,319,033.20 is: 12,478,549.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153,385.20 : 16,730,077.80 = 8,319,033.20 : x
  2. Step 2: Convert to fraction form
    11,153,385.20/16,730,077.80 = 8,319,033.20/x
  3. Step 3: Cross multiply
    11,153,385.20x = 16,730,077.80 × 8,319,033.20
  4. Step 4: Simplify right side
    11,153,385.20x = 139,178,072,656,782.97
  5. Step 5: Solve for x
    x = 139,178,072,656,782.97/11,153,385.20
  6. Step 6: Final answer
    x = 12,478,549.80

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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.