Home / 123,215,391-184,913,514-99,243,747.72

Finding the Fourth Proportional to 123,215,391, 184,913,514 and 99,243,747.72

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Solution

The fourth proportional to 123,215,391, 184,913,514 and 99,243,747.72 is: 148,938,456.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,215,391 : 184,913,514 = 99,243,747.72 : x
  2. Step 2: Convert to fraction form
    123,215,391/184,913,514 = 99,243,747.72/x
  3. Step 3: Cross multiply
    123,215,391x = 184,913,514 × 99,243,747.72
  4. Step 4: Simplify right side
    123,215,391x = 18,351,510,133,434,688
  5. Step 5: Solve for x
    x = 18,351,510,133,434,688/123,215,391
  6. Step 6: Final answer
    x = 148,938,456.34

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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.