Home / 639,377,999.40-896,036,191.80-639,377,999.40

Finding the Fourth Proportional to 639,377,999.40, 896,036,191.80 and 639,377,999.40

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Solution

The fourth proportional to 639,377,999.40, 896,036,191.80 and 639,377,999.40 is: 896,036,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,377,999.40 : 896,036,191.80 = 639,377,999.40 : x
  2. Step 2: Convert to fraction form
    639,377,999.40/896,036,191.80 = 639,377,999.40/x
  3. Step 3: Cross multiply
    639,377,999.40x = 896,036,191.80 × 639,377,999.40
  4. Step 4: Simplify right side
    639,377,999.40x = 572,905,827,703,078,656
  5. Step 5: Solve for x
    x = 572,905,827,703,078,656/639,377,999.40
  6. Step 6: Final answer
    x = 896,036,191.80

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1.5x scale

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.