Home / 151,891,938.78-209,611,881.94-82,277,319.66

Finding the Fourth Proportional to 151,891,938.78, 209,611,881.94 and 82,277,319.66

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Solution

The fourth proportional to 151,891,938.78, 209,611,881.94 and 82,277,319.66 is: 113,543,246.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,891,938.78 : 209,611,881.94 = 82,277,319.66 : x
  2. Step 2: Convert to fraction form
    151,891,938.78/209,611,881.94 = 82,277,319.66/x
  3. Step 3: Cross multiply
    151,891,938.78x = 209,611,881.94 × 82,277,319.66
  4. Step 4: Simplify right side
    151,891,938.78x = 17,246,303,814,911,560
  5. Step 5: Solve for x
    x = 17,246,303,814,911,560/151,891,938.78
  6. Step 6: Final answer
    x = 113,543,246.29

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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.