Home / 19,770,307.20-29,655,460.80-12,117,556.80

Finding the Fourth Proportional to 19,770,307.20, 29,655,460.80 and 12,117,556.80

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Solution

The fourth proportional to 19,770,307.20, 29,655,460.80 and 12,117,556.80 is: 18,176,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,770,307.20 : 29,655,460.80 = 12,117,556.80 : x
  2. Step 2: Convert to fraction form
    19,770,307.20/29,655,460.80 = 12,117,556.80/x
  3. Step 3: Cross multiply
    19,770,307.20x = 29,655,460.80 × 12,117,556.80
  4. Step 4: Simplify right side
    19,770,307.20x = 359,351,730,674,173.50
  5. Step 5: Solve for x
    x = 359,351,730,674,173.50/19,770,307.20
  6. Step 6: Final answer
    x = 18,176,335.20

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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.