Home / 88,143,018.21-121,599,633.78-55,045,807.74

Finding the Fourth Proportional to 88,143,018.21, 121,599,633.78 and 55,045,807.74

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Solution

The fourth proportional to 88,143,018.21, 121,599,633.78 and 55,045,807.74 is: 75,939,651.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,143,018.21 : 121,599,633.78 = 55,045,807.74 : x
  2. Step 2: Convert to fraction form
    88,143,018.21/121,599,633.78 = 55,045,807.74/x
  3. Step 3: Cross multiply
    88,143,018.21x = 121,599,633.78 × 55,045,807.74
  4. Step 4: Simplify right side
    88,143,018.21x = 6,693,550,062,308,290
  5. Step 5: Solve for x
    x = 6,693,550,062,308,290/88,143,018.21
  6. Step 6: Final answer
    x = 75,939,651.24

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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.