Home / 639,378,002.90-896,036,196.70-639,378,002.90

Finding the Fourth Proportional to 639,378,002.90, 896,036,196.70 and 639,378,002.90

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Solution

The fourth proportional to 639,378,002.90, 896,036,196.70 and 639,378,002.90 is: 896,036,196.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,378,002.90 : 896,036,196.70 = 639,378,002.90 : x
  2. Step 2: Convert to fraction form
    639,378,002.90/896,036,196.70 = 639,378,002.90/x
  3. Step 3: Cross multiply
    639,378,002.90x = 896,036,196.70 × 639,378,002.90
  4. Step 4: Simplify right side
    639,378,002.90x = 572,905,833,972,157,568
  5. Step 5: Solve for x
    x = 572,905,833,972,157,568/639,378,002.90
  6. Step 6: Final answer
    x = 896,036,196.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.