Home / 280,589,715.90-420,884,573.85-127,534,707.90

Finding the Fourth Proportional to 280,589,715.90, 420,884,573.85 and 127,534,707.90

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Solution

The fourth proportional to 280,589,715.90, 420,884,573.85 and 127,534,707.90 is: 191,302,061.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,589,715.90 : 420,884,573.85 = 127,534,707.90 : x
  2. Step 2: Convert to fraction form
    280,589,715.90/420,884,573.85 = 127,534,707.90/x
  3. Step 3: Cross multiply
    280,589,715.90x = 420,884,573.85 × 127,534,707.90
  4. Step 4: Simplify right side
    280,589,715.90x = 53,677,391,185,575,736
  5. Step 5: Solve for x
    x = 53,677,391,185,575,736/280,589,715.90
  6. Step 6: Final answer
    x = 191,302,061.85

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1.5x scale

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.