Home / 65,755,667.88-90,755,656.74-39,654,435.24

Finding the Fourth Proportional to 65,755,667.88, 90,755,656.74 and 39,654,435.24

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Solution

The fourth proportional to 65,755,667.88, 90,755,656.74 and 39,654,435.24 is: 54,730,860.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,755,667.88 : 90,755,656.74 = 39,654,435.24 : x
  2. Step 2: Convert to fraction form
    65,755,667.88/90,755,656.74 = 39,654,435.24/x
  3. Step 3: Cross multiply
    65,755,667.88x = 90,755,656.74 × 39,654,435.24
  4. Step 4: Simplify right side
    65,755,667.88x = 3,598,864,312,859,999.50
  5. Step 5: Solve for x
    x = 3,598,864,312,859,999.50/65,755,667.88
  6. Step 6: Final answer
    x = 54,730,860.91

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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.