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Finding the Fourth Proportional to 10,888,978.80, 16,333,468.20 and 7,106,732.40

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Solution

The fourth proportional to 10,888,978.80, 16,333,468.20 and 7,106,732.40 is: 10,660,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888,978.80 : 16,333,468.20 = 7,106,732.40 : x
  2. Step 2: Convert to fraction form
    10,888,978.80/16,333,468.20 = 7,106,732.40/x
  3. Step 3: Cross multiply
    10,888,978.80x = 16,333,468.20 × 7,106,732.40
  4. Step 4: Simplify right side
    10,888,978.80x = 116,077,587,661,309.69
  5. Step 5: Solve for x
    x = 116,077,587,661,309.69/10,888,978.80
  6. Step 6: Final answer
    x = 10,660,098.60

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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.