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Finding the Fourth Proportional to 219,359,652.10, 302,719,978.38 and 118,891,296.94

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Solution

The fourth proportional to 219,359,652.10, 302,719,978.38 and 118,891,296.94 is: 164,071,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,359,652.10 : 302,719,978.38 = 118,891,296.94 : x
  2. Step 2: Convert to fraction form
    219,359,652.10/302,719,978.38 = 118,891,296.94/x
  3. Step 3: Cross multiply
    219,359,652.10x = 302,719,978.38 × 118,891,296.94
  4. Step 4: Simplify right side
    219,359,652.10x = 35,990,770,839,246,960
  5. Step 5: Solve for x
    x = 35,990,770,839,246,960/219,359,652.10
  6. Step 6: Final answer
    x = 164,071,972.65

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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.