Home / 20,121,334.40-30,185,938.20-8,606,779.40

Finding the Fourth Proportional to 20,121,334.40, 30,185,938.20 and 8,606,779.40

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Solution

The fourth proportional to 20,121,334.40, 30,185,938.20 and 8,606,779.40 is: 12,911,852.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121,334.40 : 30,185,938.20 = 8,606,779.40 : x
  2. Step 2: Convert to fraction form
    20,121,334.40/30,185,938.20 = 8,606,779.40/x
  3. Step 3: Cross multiply
    20,121,334.40x = 30,185,938.20 × 8,606,779.40
  4. Step 4: Simplify right side
    20,121,334.40x = 259,803,711,069,433.09
  5. Step 5: Solve for x
    x = 259,803,711,069,433.09/20,121,334.40
  6. Step 6: Final answer
    x = 12,911,852.96

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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.