Home / 154,415,979.84-213,093,280.47-83,850,961.69

Finding the Fourth Proportional to 154,415,979.84, 213,093,280.47 and 83,850,961.69

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Solution

The fourth proportional to 154,415,979.84, 213,093,280.47 and 83,850,961.69 is: 115,713,908.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,415,979.84 : 213,093,280.47 = 83,850,961.69 : x
  2. Step 2: Convert to fraction form
    154,415,979.84/213,093,280.47 = 83,850,961.69/x
  3. Step 3: Cross multiply
    154,415,979.84x = 213,093,280.47 × 83,850,961.69
  4. Step 4: Simplify right side
    154,415,979.84x = 17,868,076,497,086,394
  5. Step 5: Solve for x
    x = 17,868,076,497,086,394/154,415,979.84
  6. Step 6: Final answer
    x = 115,713,908.08

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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.