Home / 842,924,140.54-1,263,874,211.01-422,256,287.39

Finding the Fourth Proportional to 842,924,140.54, 1,263,874,211.01 and 422,256,287.39

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Solution

The fourth proportional to 842,924,140.54, 1,263,874,211.01 and 422,256,287.39 is: 633,127,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,924,140.54 : 1,263,874,211.01 = 422,256,287.39 : x
  2. Step 2: Convert to fraction form
    842,924,140.54/1,263,874,211.01 = 422,256,287.39/x
  3. Step 3: Cross multiply
    842,924,140.54x = 1,263,874,211.01 × 422,256,287.39
  4. Step 4: Simplify right side
    842,924,140.54x = 533,678,832,072,835,392
  5. Step 5: Solve for x
    x = 533,678,832,072,835,392/842,924,140.54
  6. Step 6: Final answer
    x = 633,127,948.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.