Home / 66,203,143.16-99,313,391.52-21,872,700.95

Finding the Fourth Proportional to 66,203,143.16, 99,313,391.52 and 21,872,700.95

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Solution

The fourth proportional to 66,203,143.16, 99,313,391.52 and 21,872,700.95 is: 32,811,918.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,203,143.16 : 99,313,391.52 = 21,872,700.95 : x
  2. Step 2: Convert to fraction form
    66,203,143.16/99,313,391.52 = 21,872,700.95/x
  3. Step 3: Cross multiply
    66,203,143.16x = 99,313,391.52 × 21,872,700.95
  4. Step 4: Simplify right side
    66,203,143.16x = 2,172,252,112,550,659
  5. Step 5: Solve for x
    x = 2,172,252,112,550,659/66,203,143.16
  6. Step 6: Final answer
    x = 32,811,918.12

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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.