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Finding the Fourth Proportional to 310,804,494.72, 428,898,961.08 and 171,572,267.04

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Solution

The fourth proportional to 310,804,494.72, 428,898,961.08 and 171,572,267.04 is: 236,763,522.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,804,494.72 : 428,898,961.08 = 171,572,267.04 : x
  2. Step 2: Convert to fraction form
    310,804,494.72/428,898,961.08 = 171,572,267.04/x
  3. Step 3: Cross multiply
    310,804,494.72x = 428,898,961.08 × 171,572,267.04
  4. Step 4: Simplify right side
    310,804,494.72x = 73,587,167,083,596,320
  5. Step 5: Solve for x
    x = 73,587,167,083,596,320/310,804,494.72
  6. Step 6: Final answer
    x = 236,763,522.84

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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.