Home / 280,495,952.40-420,743,922.12-76,024,023.60

Finding the Fourth Proportional to 280,495,952.40, 420,743,922.12 and 76,024,023.60

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Solution

The fourth proportional to 280,495,952.40, 420,743,922.12 and 76,024,023.60 is: 114,036,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,495,952.40 : 420,743,922.12 = 76,024,023.60 : x
  2. Step 2: Convert to fraction form
    280,495,952.40/420,743,922.12 = 76,024,023.60/x
  3. Step 3: Cross multiply
    280,495,952.40x = 420,743,922.12 × 76,024,023.60
  4. Step 4: Simplify right side
    280,495,952.40x = 31,986,645,864,807,440
  5. Step 5: Solve for x
    x = 31,986,645,864,807,440/280,495,952.40
  6. Step 6: Final answer
    x = 114,036,033.64

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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.