Home / 639,790,666.20-896,916,256.20-639,790,666.20

Finding the Fourth Proportional to 639,790,666.20, 896,916,256.20 and 639,790,666.20

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Solution

The fourth proportional to 639,790,666.20, 896,916,256.20 and 639,790,666.20 is: 896,916,256.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,790,666.20 : 896,916,256.20 = 639,790,666.20 : x
  2. Step 2: Convert to fraction form
    639,790,666.20/896,916,256.20 = 639,790,666.20/x
  3. Step 3: Cross multiply
    639,790,666.20x = 896,916,256.20 × 639,790,666.20
  4. Step 4: Simplify right side
    639,790,666.20x = 573,838,649,079,807,936
  5. Step 5: Solve for x
    x = 573,838,649,079,807,936/639,790,666.20
  6. Step 6: Final answer
    x = 896,916,256.20

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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.