Home / 210,085,640.88-289,966,557.28-123,193,506.48

Finding the Fourth Proportional to 210,085,640.88, 289,966,557.28 and 123,193,506.48

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Solution

The fourth proportional to 210,085,640.88, 289,966,557.28 and 123,193,506.48 is: 170,035,404.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,085,640.88 : 289,966,557.28 = 123,193,506.48 : x
  2. Step 2: Convert to fraction form
    210,085,640.88/289,966,557.28 = 123,193,506.48/x
  3. Step 3: Cross multiply
    210,085,640.88x = 289,966,557.28 × 123,193,506.48
  4. Step 4: Simplify right side
    210,085,640.88x = 35,721,996,953,256,968
  5. Step 5: Solve for x
    x = 35,721,996,953,256,968/210,085,640.88
  6. Step 6: Final answer
    x = 170,035,404.63

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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.