Home / 671,449,969.20-1,007,174,953.80-398,680,330.80

Finding the Fourth Proportional to 671,449,969.20, 1,007,174,953.80 and 398,680,330.80

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Solution

The fourth proportional to 671,449,969.20, 1,007,174,953.80 and 398,680,330.80 is: 598,020,496.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,449,969.20 : 1,007,174,953.80 = 398,680,330.80 : x
  2. Step 2: Convert to fraction form
    671,449,969.20/1,007,174,953.80 = 398,680,330.80/x
  3. Step 3: Cross multiply
    671,449,969.20x = 1,007,174,953.80 × 398,680,330.80
  4. Step 4: Simplify right side
    671,449,969.20x = 401,540,843,754,458,688
  5. Step 5: Solve for x
    x = 401,540,843,754,458,688/671,449,969.20
  6. Step 6: Final answer
    x = 598,020,496.20

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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.