Home / 153,403,789.52-211,695,968.40-83,789,217.56

Finding the Fourth Proportional to 153,403,789.52, 211,695,968.40 and 83,789,217.56

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Solution

The fourth proportional to 153,403,789.52, 211,695,968.40 and 83,789,217.56 is: 115,628,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,403,789.52 : 211,695,968.40 = 83,789,217.56 : x
  2. Step 2: Convert to fraction form
    153,403,789.52/211,695,968.40 = 83,789,217.56/x
  3. Step 3: Cross multiply
    153,403,789.52x = 211,695,968.40 × 83,789,217.56
  4. Step 4: Simplify right side
    153,403,789.52x = 17,737,839,552,842,486
  5. Step 5: Solve for x
    x = 17,737,839,552,842,486/153,403,789.52
  6. Step 6: Final answer
    x = 115,628,431.40

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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.