Home / 105,570,003.40-158,355,005.10-71,132,626.60

Finding the Fourth Proportional to 105,570,003.40, 158,355,005.10 and 71,132,626.60

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Solution

The fourth proportional to 105,570,003.40, 158,355,005.10 and 71,132,626.60 is: 106,698,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,570,003.40 : 158,355,005.10 = 71,132,626.60 : x
  2. Step 2: Convert to fraction form
    105,570,003.40/158,355,005.10 = 71,132,626.60/x
  3. Step 3: Cross multiply
    105,570,003.40x = 158,355,005.10 × 71,132,626.60
  4. Step 4: Simplify right side
    105,570,003.40x = 11,264,207,448,019,394
  5. Step 5: Solve for x
    x = 11,264,207,448,019,394/105,570,003.40
  6. Step 6: Final answer
    x = 106,698,939.90

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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.