Home / 20,492,938.40-30,739,407.60-5,346,869.90

Finding the Fourth Proportional to 20,492,938.40, 30,739,407.60 and 5,346,869.90

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Solution

The fourth proportional to 20,492,938.40, 30,739,407.60 and 5,346,869.90 is: 8,020,304.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,492,938.40 : 30,739,407.60 = 5,346,869.90 : x
  2. Step 2: Convert to fraction form
    20,492,938.40/30,739,407.60 = 5,346,869.90/x
  3. Step 3: Cross multiply
    20,492,938.40x = 30,739,407.60 × 5,346,869.90
  4. Step 4: Simplify right side
    20,492,938.40x = 164,359,613,240,271.25
  5. Step 5: Solve for x
    x = 164,359,613,240,271.25/20,492,938.40
  6. Step 6: Final answer
    x = 8,020,304.85

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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.