Home / 113,478,806.40-170,218,209.60-77,199,100.80

Finding the Fourth Proportional to 113,478,806.40, 170,218,209.60 and 77,199,100.80

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Solution

The fourth proportional to 113,478,806.40, 170,218,209.60 and 77,199,100.80 is: 115,798,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,478,806.40 : 170,218,209.60 = 77,199,100.80 : x
  2. Step 2: Convert to fraction form
    113,478,806.40/170,218,209.60 = 77,199,100.80/x
  3. Step 3: Cross multiply
    113,478,806.40x = 170,218,209.60 × 77,199,100.80
  4. Step 4: Simplify right side
    113,478,806.40x = 13,140,692,720,905,926
  5. Step 5: Solve for x
    x = 13,140,692,720,905,926/113,478,806.40
  6. Step 6: Final answer
    x = 115,798,651.20

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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.