Home / 631,916,220.78-947,965,004.10-195,255,033.12

Finding the Fourth Proportional to 631,916,220.78, 947,965,004.10 and 195,255,033.12

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Solution

The fourth proportional to 631,916,220.78, 947,965,004.10 and 195,255,033.12 is: 292,910,566.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,916,220.78 : 947,965,004.10 = 195,255,033.12 : x
  2. Step 2: Convert to fraction form
    631,916,220.78/947,965,004.10 = 195,255,033.12/x
  3. Step 3: Cross multiply
    631,916,220.78x = 947,965,004.10 × 195,255,033.12
  4. Step 4: Simplify right side
    631,916,220.78x = 185,094,938,272,146,432
  5. Step 5: Solve for x
    x = 185,094,938,272,146,432/631,916,220.78
  6. Step 6: Final answer
    x = 292,910,566.60

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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.