Home / 145,220,211.45-217,894,643.46-76,116,592.08

Finding the Fourth Proportional to 145,220,211.45, 217,894,643.46 and 76,116,592.08

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Solution

The fourth proportional to 145,220,211.45, 217,894,643.46 and 76,116,592.08 is: 114,208,604.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,220,211.45 : 217,894,643.46 = 76,116,592.08 : x
  2. Step 2: Convert to fraction form
    145,220,211.45/217,894,643.46 = 76,116,592.08/x
  3. Step 3: Cross multiply
    145,220,211.45x = 217,894,643.46 × 76,116,592.08
  4. Step 4: Simplify right side
    145,220,211.45x = 16,585,397,692,661,860
  5. Step 5: Solve for x
    x = 16,585,397,692,661,860/145,220,211.45
  6. Step 6: Final answer
    x = 114,208,604.48

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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.