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Finding the Fourth Proportional to 9,943,640.80, 14,915,461.20 and 8,348,005.60

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Solution

The fourth proportional to 9,943,640.80, 14,915,461.20 and 8,348,005.60 is: 12,522,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,943,640.80 : 14,915,461.20 = 8,348,005.60 : x
  2. Step 2: Convert to fraction form
    9,943,640.80/14,915,461.20 = 8,348,005.60/x
  3. Step 3: Cross multiply
    9,943,640.80x = 14,915,461.20 × 8,348,005.60
  4. Step 4: Simplify right side
    9,943,640.80x = 124,514,353,624,182.70
  5. Step 5: Solve for x
    x = 124,514,353,624,182.70/9,943,640.80
  6. Step 6: Final answer
    x = 12,522,008.40

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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.