Home / 722,148,109,489.80-1,083,519,091,283.40-319,018,819,743.72

Finding the Fourth Proportional to 722,148,109,489.80, 1,083,519,091,283.40 and 319,018,819,743.72

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Solution

The fourth proportional to 722,148,109,489.80, 1,083,519,091,283.40 and 319,018,819,743.72 is: 478,659,401,206.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,148,109,489.80 : 1,083,519,091,283.40 = 319,018,819,743.72 : x
  2. Step 2: Convert to fraction form
    722,148,109,489.80/1,083,519,091,283.40 = 319,018,819,743.72/x
  3. Step 3: Cross multiply
    722,148,109,489.80x = 1,083,519,091,283.40 × 319,018,819,743.72
  4. Step 4: Simplify right side
    722,148,109,489.80x = 345,662,981,671,018,261,643,264
  5. Step 5: Solve for x
    x = 345,662,981,671,018,261,643,264/722,148,109,489.80
  6. Step 6: Final answer
    x = 478,659,401,206.81

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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.