Home / 399,508,066.45-551,298,892.95-220,881,627.70

Finding the Fourth Proportional to 399,508,066.45, 551,298,892.95 and 220,881,627.70

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Solution

The fourth proportional to 399,508,066.45, 551,298,892.95 and 220,881,627.70 is: 304,804,350.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,508,066.45 : 551,298,892.95 = 220,881,627.70 : x
  2. Step 2: Convert to fraction form
    399,508,066.45/551,298,892.95 = 220,881,627.70/x
  3. Step 3: Cross multiply
    399,508,066.45x = 551,298,892.95 × 220,881,627.70
  4. Step 4: Simplify right side
    399,508,066.45x = 121,771,796,823,554,288
  5. Step 5: Solve for x
    x = 121,771,796,823,554,288/399,508,066.45
  6. Step 6: Final answer
    x = 304,804,350.77

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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.