Home / 893,641,957.86-1,233,237,251.28-491,801,972.76

Finding the Fourth Proportional to 893,641,957.86, 1,233,237,251.28 and 491,801,972.76

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Solution

The fourth proportional to 893,641,957.86, 1,233,237,251.28 and 491,801,972.76 is: 678,692,968.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,641,957.86 : 1,233,237,251.28 = 491,801,972.76 : x
  2. Step 2: Convert to fraction form
    893,641,957.86/1,233,237,251.28 = 491,801,972.76/x
  3. Step 3: Cross multiply
    893,641,957.86x = 1,233,237,251.28 × 491,801,972.76
  4. Step 4: Simplify right side
    893,641,957.86x = 606,508,513,060,623,872
  5. Step 5: Solve for x
    x = 606,508,513,060,623,872/893,641,957.86
  6. Step 6: Final answer
    x = 678,692,968.39

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Double scale
Find fourth proportional to 893,641,958.86, 1,233,237,252.66 and 491,801,973.76
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1.5x scale

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.