Home / 153,403,790.52-211,695,969.78-83,789,218.56

Finding the Fourth Proportional to 153,403,790.52, 211,695,969.78 and 83,789,218.56

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Solution

The fourth proportional to 153,403,790.52, 211,695,969.78 and 83,789,218.56 is: 115,628,432.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,403,790.52 : 211,695,969.78 = 83,789,218.56 : x
  2. Step 2: Convert to fraction form
    153,403,790.52/211,695,969.78 = 83,789,218.56/x
  3. Step 3: Cross multiply
    153,403,790.52x = 211,695,969.78 × 83,789,218.56
  4. Step 4: Simplify right side
    153,403,790.52x = 17,737,839,880,167,576
  5. Step 5: Solve for x
    x = 17,737,839,880,167,576/153,403,790.52
  6. Step 6: Final answer
    x = 115,628,432.78

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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.