Home / 65,754,147.21-90,666,466.88-49,181,159.49

Finding the Fourth Proportional to 65,754,147.21, 90,666,466.88 and 49,181,159.49

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Solution

The fourth proportional to 65,754,147.21, 90,666,466.88 and 49,181,159.49 is: 67,814,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,754,147.21 : 90,666,466.88 = 49,181,159.49 : x
  2. Step 2: Convert to fraction form
    65,754,147.21/90,666,466.88 = 49,181,159.49/x
  3. Step 3: Cross multiply
    65,754,147.21x = 90,666,466.88 × 49,181,159.49
  4. Step 4: Simplify right side
    65,754,147.21x = 4,459,081,967,774,177
  5. Step 5: Solve for x
    x = 4,459,081,967,774,177/65,754,147.21
  6. Step 6: Final answer
    x = 67,814,459.73

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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.