Home / 318,999,310.74-440,300,949.93-207,767,324.34

Finding the Fourth Proportional to 318,999,310.74, 440,300,949.93 and 207,767,324.34

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Solution

The fourth proportional to 318,999,310.74, 440,300,949.93 and 207,767,324.34 is: 286,772,250.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,999,310.74 : 440,300,949.93 = 207,767,324.34 : x
  2. Step 2: Convert to fraction form
    318,999,310.74/440,300,949.93 = 207,767,324.34/x
  3. Step 3: Cross multiply
    318,999,310.74x = 440,300,949.93 × 207,767,324.34
  4. Step 4: Simplify right side
    318,999,310.74x = 91,480,150,271,316,416
  5. Step 5: Solve for x
    x = 91,480,150,271,316,416/318,999,310.74
  6. Step 6: Final answer
    x = 286,772,250.57

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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.