Home / 862,217,416.24-1,189,860,555.69-465,740,580.96

Finding the Fourth Proportional to 862,217,416.24, 1,189,860,555.69 and 465,740,580.96

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Solution

The fourth proportional to 862,217,416.24, 1,189,860,555.69 and 465,740,580.96 is: 642,722,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,217,416.24 : 1,189,860,555.69 = 465,740,580.96 : x
  2. Step 2: Convert to fraction form
    862,217,416.24/1,189,860,555.69 = 465,740,580.96/x
  3. Step 3: Cross multiply
    862,217,416.24x = 1,189,860,555.69 × 465,740,580.96
  4. Step 4: Simplify right side
    862,217,416.24x = 554,166,346,468,449,024
  5. Step 5: Solve for x
    x = 554,166,346,468,449,024/862,217,416.24
  6. Step 6: Final answer
    x = 642,722,283.30

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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.