Home / 21,863,502.80-32,795,254.20-20,221,211.60

Finding the Fourth Proportional to 21,863,502.80, 32,795,254.20 and 20,221,211.60

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Solution

The fourth proportional to 21,863,502.80, 32,795,254.20 and 20,221,211.60 is: 30,331,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863,502.80 : 32,795,254.20 = 20,221,211.60 : x
  2. Step 2: Convert to fraction form
    21,863,502.80/32,795,254.20 = 20,221,211.60/x
  3. Step 3: Cross multiply
    21,863,502.80x = 32,795,254.20 × 20,221,211.60
  4. Step 4: Simplify right side
    21,863,502.80x = 663,159,774,653,988.75
  5. Step 5: Solve for x
    x = 663,159,774,653,988.75/21,863,502.80
  6. Step 6: Final answer
    x = 30,331,817.40

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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.