Home / 639,373,565.71-882,335,512.98-346,018,133.71

Finding the Fourth Proportional to 639,373,565.71, 882,335,512.98 and 346,018,133.71

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Solution

The fourth proportional to 639,373,565.71, 882,335,512.98 and 346,018,133.71 is: 477,505,020.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,373,565.71 : 882,335,512.98 = 346,018,133.71 : x
  2. Step 2: Convert to fraction form
    639,373,565.71/882,335,512.98 = 346,018,133.71/x
  3. Step 3: Cross multiply
    639,373,565.71x = 882,335,512.98 × 346,018,133.71
  4. Step 4: Simplify right side
    639,373,565.71x = 305,304,087,507,395,072
  5. Step 5: Solve for x
    x = 305,304,087,507,395,072/639,373,565.71
  6. Step 6: Final answer
    x = 477,505,020.35

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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.