Home / 909,447,171.78-1,363,584,237.60-356,805,452.58

Finding the Fourth Proportional to 909,447,171.78, 1,363,584,237.60 and 356,805,452.58

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Solution

The fourth proportional to 909,447,171.78, 1,363,584,237.60 and 356,805,452.58 is: 534,978,068.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,447,171.78 : 1,363,584,237.60 = 356,805,452.58 : x
  2. Step 2: Convert to fraction form
    909,447,171.78/1,363,584,237.60 = 356,805,452.58/x
  3. Step 3: Cross multiply
    909,447,171.78x = 1,363,584,237.60 × 356,805,452.58
  4. Step 4: Simplify right side
    909,447,171.78x = 486,534,291,027,822,208
  5. Step 5: Solve for x
    x = 486,534,291,027,822,208/909,447,171.78
  6. Step 6: Final answer
    x = 534,978,068.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.