Home / 399,322,885.67-551,094,098.13-220,702,931.45

Finding the Fourth Proportional to 399,322,885.67, 551,094,098.13 and 220,702,931.45

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Solution

The fourth proportional to 399,322,885.67, 551,094,098.13 and 220,702,931.45 is: 304,585,805.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,322,885.67 : 551,094,098.13 = 220,702,931.45 : x
  2. Step 2: Convert to fraction form
    399,322,885.67/551,094,098.13 = 220,702,931.45/x
  3. Step 3: Cross multiply
    399,322,885.67x = 551,094,098.13 × 220,702,931.45
  4. Step 4: Simplify right side
    399,322,885.67x = 121,628,082,962,084,960
  5. Step 5: Solve for x
    x = 121,628,082,962,084,960/399,322,885.67
  6. Step 6: Final answer
    x = 304,585,805.94

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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.