Home / 12,698,705.40-17,524,355.10-7,472,868.60

Finding the Fourth Proportional to 12,698,705.40, 17,524,355.10 and 7,472,868.60

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Solution

The fourth proportional to 12,698,705.40, 17,524,355.10 and 7,472,868.60 is: 10,312,642.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698,705.40 : 17,524,355.10 = 7,472,868.60 : x
  2. Step 2: Convert to fraction form
    12,698,705.40/17,524,355.10 = 7,472,868.60/x
  3. Step 3: Cross multiply
    12,698,705.40x = 17,524,355.10 × 7,472,868.60
  4. Step 4: Simplify right side
    12,698,705.40x = 130,957,202,962,039.86
  5. Step 5: Solve for x
    x = 130,957,202,962,039.86/12,698,705.40
  6. Step 6: Final answer
    x = 10,312,642.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.