Home / 243,015,436.35-335,254,432.51-142,492,563.82

Finding the Fourth Proportional to 243,015,436.35, 335,254,432.51 and 142,492,563.82

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Solution

The fourth proportional to 243,015,436.35, 335,254,432.51 and 142,492,563.82 is: 196,577,074.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,015,436.35 : 335,254,432.51 = 142,492,563.82 : x
  2. Step 2: Convert to fraction form
    243,015,436.35/335,254,432.51 = 142,492,563.82/x
  3. Step 3: Cross multiply
    243,015,436.35x = 335,254,432.51 × 142,492,563.82
  4. Step 4: Simplify right side
    243,015,436.35x = 47,771,263,620,369,056
  5. Step 5: Solve for x
    x = 47,771,263,620,369,056/243,015,436.35
  6. Step 6: Final answer
    x = 196,577,074.85

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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.