Home / 399,322,889.17-551,094,102.96-220,702,934.95

Finding the Fourth Proportional to 399,322,889.17, 551,094,102.96 and 220,702,934.95

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Solution

The fourth proportional to 399,322,889.17, 551,094,102.96 and 220,702,934.95 is: 304,585,810.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,322,889.17 : 551,094,102.96 = 220,702,934.95 : x
  2. Step 2: Convert to fraction form
    399,322,889.17/551,094,102.96 = 220,702,934.95/x
  3. Step 3: Cross multiply
    399,322,889.17x = 551,094,102.96 × 220,702,934.95
  4. Step 4: Simplify right side
    399,322,889.17x = 121,628,085,956,909,488
  5. Step 5: Solve for x
    x = 121,628,085,956,909,488/399,322,889.17
  6. Step 6: Final answer
    x = 304,585,810.77

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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.