Home / 1,109,432,921.68-1,531,042,208.82-633,113,805.64

Finding the Fourth Proportional to 1,109,432,921.68, 1,531,042,208.82 and 633,113,805.64

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Solution

The fourth proportional to 1,109,432,921.68, 1,531,042,208.82 and 633,113,805.64 is: 873,711,191.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,432,921.68 : 1,531,042,208.82 = 633,113,805.64 : x
  2. Step 2: Convert to fraction form
    1,109,432,921.68/1,531,042,208.82 = 633,113,805.64/x
  3. Step 3: Cross multiply
    1,109,432,921.68x = 1,531,042,208.82 × 633,113,805.64
  4. Step 4: Simplify right side
    1,109,432,921.68x = 969,323,959,421,501,696
  5. Step 5: Solve for x
    x = 969,323,959,421,501,696/1,109,432,921.68
  6. Step 6: Final answer
    x = 873,711,191.08

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Double scale
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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.