Home / 141,267,288.21-194,965,002.39-78,549,639.45

Finding the Fourth Proportional to 141,267,288.21, 194,965,002.39 and 78,549,639.45

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Solution

The fourth proportional to 141,267,288.21, 194,965,002.39 and 78,549,639.45 is: 108,407,479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,267,288.21 : 194,965,002.39 = 78,549,639.45 : x
  2. Step 2: Convert to fraction form
    141,267,288.21/194,965,002.39 = 78,549,639.45/x
  3. Step 3: Cross multiply
    141,267,288.21x = 194,965,002.39 × 78,549,639.45
  4. Step 4: Simplify right side
    141,267,288.21x = 15,314,430,643,102,888
  5. Step 5: Solve for x
    x = 15,314,430,643,102,888/141,267,288.21
  6. Step 6: Final answer
    x = 108,407,479.45

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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.