Home / 18,420,585,800.27-25,420,408,207.55-9,962,409,577.52

Finding the Fourth Proportional to 18,420,585,800.27, 25,420,408,207.55 and 9,962,409,577.52

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Solution

The fourth proportional to 18,420,585,800.27, 25,420,408,207.55 and 9,962,409,577.52 is: 13,748,125,110.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420,585,800.27 : 25,420,408,207.55 = 9,962,409,577.52 : x
  2. Step 2: Convert to fraction form
    18,420,585,800.27/25,420,408,207.55 = 9,962,409,577.52/x
  3. Step 3: Cross multiply
    18,420,585,800.27x = 25,420,408,207.55 × 9,962,409,577.52
  4. Step 4: Simplify right side
    18,420,585,800.27x = 253,248,518,191,187,197,952
  5. Step 5: Solve for x
    x = 253,248,518,191,187,197,952/18,420,585,800.27
  6. Step 6: Final answer
    x = 13,748,125,110.52

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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.