Home / 11,078,812.60-16,618,218.90-9,187,689.40

Finding the Fourth Proportional to 11,078,812.60, 16,618,218.90 and 9,187,689.40

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Solution

The fourth proportional to 11,078,812.60, 16,618,218.90 and 9,187,689.40 is: 13,781,534.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078,812.60 : 16,618,218.90 = 9,187,689.40 : x
  2. Step 2: Convert to fraction form
    11,078,812.60/16,618,218.90 = 9,187,689.40/x
  3. Step 3: Cross multiply
    11,078,812.60x = 16,618,218.90 × 9,187,689.40
  4. Step 4: Simplify right side
    11,078,812.60x = 152,683,033,634,409.66
  5. Step 5: Solve for x
    x = 152,683,033,634,409.66/11,078,812.60
  6. Step 6: Final answer
    x = 13,781,534.10

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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.