Home / 107,838,287.20-161,757,430.80-67,023,618.40

Finding the Fourth Proportional to 107,838,287.20, 161,757,430.80 and 67,023,618.40

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Solution

The fourth proportional to 107,838,287.20, 161,757,430.80 and 67,023,618.40 is: 100,535,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,838,287.20 : 161,757,430.80 = 67,023,618.40 : x
  2. Step 2: Convert to fraction form
    107,838,287.20/161,757,430.80 = 67,023,618.40/x
  3. Step 3: Cross multiply
    107,838,287.20x = 161,757,430.80 × 67,023,618.40
  4. Step 4: Simplify right side
    107,838,287.20x = 10,841,568,315,303,608
  5. Step 5: Solve for x
    x = 10,841,568,315,303,608/107,838,287.20
  6. Step 6: Final answer
    x = 100,535,427.60

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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.