Home / 13,413,585,609.45-18,510,209,211.38-7,309,808,555.11

Finding the Fourth Proportional to 13,413,585,609.45, 18,510,209,211.38 and 7,309,808,555.11

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Solution

The fourth proportional to 13,413,585,609.45, 18,510,209,211.38 and 7,309,808,555.11 is: 10,087,242,113.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413,585,609.45 : 18,510,209,211.38 = 7,309,808,555.11 : x
  2. Step 2: Convert to fraction form
    13,413,585,609.45/18,510,209,211.38 = 7,309,808,555.11/x
  3. Step 3: Cross multiply
    13,413,585,609.45x = 18,510,209,211.38 × 7,309,808,555.11
  4. Step 4: Simplify right side
    13,413,585,609.45x = 135,306,085,650,221,449,216
  5. Step 5: Solve for x
    x = 135,306,085,650,221,449,216/13,413,585,609.45
  6. Step 6: Final answer
    x = 10,087,242,113.32

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Double scale
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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.