Home / 438,449,440.13-657,477,591.82-261,270,143.81

Finding the Fourth Proportional to 438,449,440.13, 657,477,591.82 and 261,270,143.81

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Solution

The fourth proportional to 438,449,440.13, 657,477,591.82 and 261,270,143.81 is: 391,788,081.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,449,440.13 : 657,477,591.82 = 261,270,143.81 : x
  2. Step 2: Convert to fraction form
    438,449,440.13/657,477,591.82 = 261,270,143.81/x
  3. Step 3: Cross multiply
    438,449,440.13x = 657,477,591.82 × 261,270,143.81
  4. Step 4: Simplify right side
    438,449,440.13x = 171,779,264,962,723,328
  5. Step 5: Solve for x
    x = 171,779,264,962,723,328/438,449,440.13
  6. Step 6: Final answer
    x = 391,788,081.46

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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.