Home / 100,890,434.94-139,229,225.37-56,837,961.86

Finding the Fourth Proportional to 100,890,434.94, 139,229,225.37 and 56,837,961.86

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Solution

The fourth proportional to 100,890,434.94, 139,229,225.37 and 56,837,961.86 is: 78,436,626.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,890,434.94 : 139,229,225.37 = 56,837,961.86 : x
  2. Step 2: Convert to fraction form
    100,890,434.94/139,229,225.37 = 56,837,961.86/x
  3. Step 3: Cross multiply
    100,890,434.94x = 139,229,225.37 × 56,837,961.86
  4. Step 4: Simplify right side
    100,890,434.94x = 7,913,505,400,681,258
  5. Step 5: Solve for x
    x = 7,913,505,400,681,258/100,890,434.94
  6. Step 6: Final answer
    x = 78,436,626.88

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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.