Home / 69,212,118.40-103,818,177.60-66,263,459.20

Finding the Fourth Proportional to 69,212,118.40, 103,818,177.60 and 66,263,459.20

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Solution

The fourth proportional to 69,212,118.40, 103,818,177.60 and 66,263,459.20 is: 99,395,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,212,118.40 : 103,818,177.60 = 66,263,459.20 : x
  2. Step 2: Convert to fraction form
    69,212,118.40/103,818,177.60 = 66,263,459.20/x
  3. Step 3: Cross multiply
    69,212,118.40x = 103,818,177.60 × 66,263,459.20
  4. Step 4: Simplify right side
    69,212,118.40x = 6,879,351,575,615,954
  5. Step 5: Solve for x
    x = 6,879,351,575,615,954/69,212,118.40
  6. Step 6: Final answer
    x = 99,395,188.80

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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.