Home / 103,346,166.40-155,019,249.60-70,609,400.80

Finding the Fourth Proportional to 103,346,166.40, 155,019,249.60 and 70,609,400.80

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Solution

The fourth proportional to 103,346,166.40, 155,019,249.60 and 70,609,400.80 is: 105,914,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,346,166.40 : 155,019,249.60 = 70,609,400.80 : x
  2. Step 2: Convert to fraction form
    103,346,166.40/155,019,249.60 = 70,609,400.80/x
  3. Step 3: Cross multiply
    103,346,166.40x = 155,019,249.60 × 70,609,400.80
  4. Step 4: Simplify right side
    103,346,166.40x = 10,945,816,326,721,638
  5. Step 5: Solve for x
    x = 10,945,816,326,721,638/103,346,166.40
  6. Step 6: Final answer
    x = 105,914,101.20

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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.