Home / 639,528,502.06-959,384,261.83-196,908,632.40

Finding the Fourth Proportional to 639,528,502.06, 959,384,261.83 and 196,908,632.40

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Solution

The fourth proportional to 639,528,502.06, 959,384,261.83 and 196,908,632.40 is: 295,391,123.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,528,502.06 : 959,384,261.83 = 196,908,632.40 : x
  2. Step 2: Convert to fraction form
    639,528,502.06/959,384,261.83 = 196,908,632.40/x
  3. Step 3: Cross multiply
    639,528,502.06x = 959,384,261.83 × 196,908,632.40
  4. Step 4: Simplify right side
    639,528,502.06x = 188,911,042,940,549,760
  5. Step 5: Solve for x
    x = 188,911,042,940,549,760/639,528,502.06
  6. Step 6: Final answer
    x = 295,391,123.82

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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.