Home / 862,217,427.61-1,189,860,571.38-465,740,592.33

Finding the Fourth Proportional to 862,217,427.61, 1,189,860,571.38 and 465,740,592.33

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Solution

The fourth proportional to 862,217,427.61, 1,189,860,571.38 and 465,740,592.33 is: 642,722,298.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,217,427.61 : 1,189,860,571.38 = 465,740,592.33 : x
  2. Step 2: Convert to fraction form
    862,217,427.61/1,189,860,571.38 = 465,740,592.33/x
  3. Step 3: Cross multiply
    862,217,427.61x = 1,189,860,571.38 × 465,740,592.33
  4. Step 4: Simplify right side
    862,217,427.61x = 554,166,367,307,463,232
  5. Step 5: Solve for x
    x = 554,166,367,307,463,232/862,217,427.61
  6. Step 6: Final answer
    x = 642,722,298.99

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Double scale
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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.