Home / 20,102,938,721.60-30,154,408,082.40-5,380,960,139.60

Finding the Fourth Proportional to 20,102,938,721.60, 30,154,408,082.40 and 5,380,960,139.60

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Solution

The fourth proportional to 20,102,938,721.60, 30,154,408,082.40 and 5,380,960,139.60 is: 8,071,440,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102,938,721.60 : 30,154,408,082.40 = 5,380,960,139.60 : x
  2. Step 2: Convert to fraction form
    20,102,938,721.60/30,154,408,082.40 = 5,380,960,139.60/x
  3. Step 3: Cross multiply
    20,102,938,721.60x = 30,154,408,082.40 × 5,380,960,139.60
  4. Step 4: Simplify right side
    20,102,938,721.60x = 162,259,667,924,626,505,728
  5. Step 5: Solve for x
    x = 162,259,667,924,626,505,728/20,102,938,721.60
  6. Step 6: Final answer
    x = 8,071,440,209.40

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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.