Home / 280,254,551.28-420,458,522.58-134,809,778.40

Finding the Fourth Proportional to 280,254,551.28, 420,458,522.58 and 134,809,778.40

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Solution

The fourth proportional to 280,254,551.28, 420,458,522.58 and 134,809,778.40 is: 202,251,560.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,254,551.28 : 420,458,522.58 = 134,809,778.40 : x
  2. Step 2: Convert to fraction form
    280,254,551.28/420,458,522.58 = 134,809,778.40/x
  3. Step 3: Cross multiply
    280,254,551.28x = 420,458,522.58 × 134,809,778.40
  4. Step 4: Simplify right side
    280,254,551.28x = 56,681,920,255,401,200
  5. Step 5: Solve for x
    x = 56,681,920,255,401,200/280,254,551.28
  6. Step 6: Final answer
    x = 202,251,560.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.