Home / 278,577,401.91-384,432,504.88-153,126,913.45

Finding the Fourth Proportional to 278,577,401.91, 384,432,504.88 and 153,126,913.45

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Solution

The fourth proportional to 278,577,401.91, 384,432,504.88 and 153,126,913.45 is: 211,312,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,577,401.91 : 384,432,504.88 = 153,126,913.45 : x
  2. Step 2: Convert to fraction form
    278,577,401.91/384,432,504.88 = 153,126,913.45/x
  3. Step 3: Cross multiply
    278,577,401.91x = 384,432,504.88 × 153,126,913.45
  4. Step 4: Simplify right side
    278,577,401.91x = 58,866,962,902,126,456
  5. Step 5: Solve for x
    x = 58,866,962,902,126,456/278,577,401.91
  6. Step 6: Final answer
    x = 211,312,771.60

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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.