Home / 20,118,217.40-30,177,424.52-7,338,701.60

Finding the Fourth Proportional to 20,118,217.40, 30,177,424.52 and 7,338,701.60

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Solution

The fourth proportional to 20,118,217.40, 30,177,424.52 and 7,338,701.60 is: 11,008,088.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118,217.40 : 30,177,424.52 = 7,338,701.60 : x
  2. Step 2: Convert to fraction form
    20,118,217.40/30,177,424.52 = 7,338,701.60/x
  3. Step 3: Cross multiply
    20,118,217.40x = 30,177,424.52 × 7,338,701.60
  4. Step 4: Simplify right side
    20,118,217.40x = 221,463,113,608,803.22
  5. Step 5: Solve for x
    x = 221,463,113,608,803.22/20,118,217.40
  6. Step 6: Final answer
    x = 11,008,088.30

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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.