Home / 172,431,419.08-238,266,622.94-122,785,602.06

Finding the Fourth Proportional to 172,431,419.08, 238,266,622.94 and 122,785,602.06

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Solution

The fourth proportional to 172,431,419.08, 238,266,622.94 and 122,785,602.06 is: 169,665,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,431,419.08 : 238,266,622.94 = 122,785,602.06 : x
  2. Step 2: Convert to fraction form
    172,431,419.08/238,266,622.94 = 122,785,602.06/x
  3. Step 3: Cross multiply
    172,431,419.08x = 238,266,622.94 × 122,785,602.06
  4. Step 4: Simplify right side
    172,431,419.08x = 29,255,710,748,490,908
  5. Step 5: Solve for x
    x = 29,255,710,748,490,908/172,431,419.08
  6. Step 6: Final answer
    x = 169,665,777.30

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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.