Home / 872,372,920.95-1,203,872,979.65-475,895,805.75

Finding the Fourth Proportional to 872,372,920.95, 1,203,872,979.65 and 475,895,805.75

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Solution

The fourth proportional to 872,372,920.95, 1,203,872,979.65 and 475,895,805.75 is: 656,735,311.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,372,920.95 : 1,203,872,979.65 = 475,895,805.75 : x
  2. Step 2: Convert to fraction form
    872,372,920.95/1,203,872,979.65 = 475,895,805.75/x
  3. Step 3: Cross multiply
    872,372,920.95x = 1,203,872,979.65 × 475,895,805.75
  4. Step 4: Simplify right side
    872,372,920.95x = 572,918,101,668,810,624
  5. Step 5: Solve for x
    x = 572,918,101,668,810,624/872,372,920.95
  6. Step 6: Final answer
    x = 656,735,311.14

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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.