Home / 20,271,036.90-30,406,555.35-18,915,862.35

Finding the Fourth Proportional to 20,271,036.90, 30,406,555.35 and 18,915,862.35

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Solution

The fourth proportional to 20,271,036.90, 30,406,555.35 and 18,915,862.35 is: 28,373,793.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271,036.90 : 30,406,555.35 = 18,915,862.35 : x
  2. Step 2: Convert to fraction form
    20,271,036.90/30,406,555.35 = 18,915,862.35/x
  3. Step 3: Cross multiply
    20,271,036.90x = 30,406,555.35 × 18,915,862.35
  4. Step 4: Simplify right side
    20,271,036.90x = 575,166,215,538,256.12
  5. Step 5: Solve for x
    x = 575,166,215,538,256.12/20,271,036.90
  6. Step 6: Final answer
    x = 28,373,793.53

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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.