Home / 631,179,435.76-871,028,801.44-352,720,959.60

Finding the Fourth Proportional to 631,179,435.76, 871,028,801.44 and 352,720,959.60

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Solution

The fourth proportional to 631,179,435.76, 871,028,801.44 and 352,720,959.60 is: 486,755,583.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,179,435.76 : 871,028,801.44 = 352,720,959.60 : x
  2. Step 2: Convert to fraction form
    631,179,435.76/871,028,801.44 = 352,720,959.60/x
  3. Step 3: Cross multiply
    631,179,435.76x = 871,028,801.44 × 352,720,959.60
  4. Step 4: Simplify right side
    631,179,435.76x = 307,230,114,683,154,688
  5. Step 5: Solve for x
    x = 307,230,114,683,154,688/631,179,435.76
  6. Step 6: Final answer
    x = 486,755,583.72

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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.