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Finding the Fourth Proportional to 9,881,998.80, 14,822,998.20 and 7,012,217.40

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Solution

The fourth proportional to 9,881,998.80, 14,822,998.20 and 7,012,217.40 is: 10,518,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,881,998.80 : 14,822,998.20 = 7,012,217.40 : x
  2. Step 2: Convert to fraction form
    9,881,998.80/14,822,998.20 = 7,012,217.40/x
  3. Step 3: Cross multiply
    9,881,998.80x = 14,822,998.20 × 7,012,217.40
  4. Step 4: Simplify right side
    9,881,998.80x = 103,942,085,898,208.69
  5. Step 5: Solve for x
    x = 103,942,085,898,208.69/9,881,998.80
  6. Step 6: Final answer
    x = 10,518,326.10

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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.