Home / 123,703,968.06-170,715,381.03-74,128,002.30

Finding the Fourth Proportional to 123,703,968.06, 170,715,381.03 and 74,128,002.30

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Solution

The fourth proportional to 123,703,968.06, 170,715,381.03 and 74,128,002.30 is: 102,298,983.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,703,968.06 : 170,715,381.03 = 74,128,002.30 : x
  2. Step 2: Convert to fraction form
    123,703,968.06/170,715,381.03 = 74,128,002.30/x
  3. Step 3: Cross multiply
    123,703,968.06x = 170,715,381.03 × 74,128,002.30
  4. Step 4: Simplify right side
    123,703,968.06x = 12,654,790,157,637,216
  5. Step 5: Solve for x
    x = 12,654,790,157,637,216/123,703,968.06
  6. Step 6: Final answer
    x = 102,298,983.26

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1.5x scale

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.