Home / 18,420,585,799.65-25,420,408,206.69-9,962,409,576.90

Finding the Fourth Proportional to 18,420,585,799.65, 25,420,408,206.69 and 9,962,409,576.90

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Solution

The fourth proportional to 18,420,585,799.65, 25,420,408,206.69 and 9,962,409,576.90 is: 13,748,125,109.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420,585,799.65 : 25,420,408,206.69 = 9,962,409,576.90 : x
  2. Step 2: Convert to fraction form
    18,420,585,799.65/25,420,408,206.69 = 9,962,409,576.90/x
  3. Step 3: Cross multiply
    18,420,585,799.65x = 25,420,408,206.69 × 9,962,409,576.90
  4. Step 4: Simplify right side
    18,420,585,799.65x = 253,248,518,166,858,924,032
  5. Step 5: Solve for x
    x = 253,248,518,166,858,924,032/18,420,585,799.65
  6. Step 6: Final answer
    x = 13,748,125,109.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.