Home / 18,420,585,822.18-25,420,408,237.86-9,962,409,599.46

Finding the Fourth Proportional to 18,420,585,822.18, 25,420,408,237.86 and 9,962,409,599.46

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Solution

The fourth proportional to 18,420,585,822.18, 25,420,408,237.86 and 9,962,409,599.46 is: 13,748,125,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420,585,822.18 : 25,420,408,237.86 = 9,962,409,599.46 : x
  2. Step 2: Convert to fraction form
    18,420,585,822.18/25,420,408,237.86 = 9,962,409,599.46/x
  3. Step 3: Cross multiply
    18,420,585,822.18x = 25,420,408,237.86 × 9,962,409,599.46
  4. Step 4: Simplify right side
    18,420,585,822.18x = 253,248,519,051,048,517,632
  5. Step 5: Solve for x
    x = 253,248,519,051,048,517,632/18,420,585,822.18
  6. Step 6: Final answer
    x = 13,748,125,140.85

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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.