Home / 78,814,963.71-108,764,000.54-43,051,434.05

Finding the Fourth Proportional to 78,814,963.71, 108,764,000.54 and 43,051,434.05

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Solution

The fourth proportional to 78,814,963.71, 108,764,000.54 and 43,051,434.05 is: 59,410,624.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,814,963.71 : 108,764,000.54 = 43,051,434.05 : x
  2. Step 2: Convert to fraction form
    78,814,963.71/108,764,000.54 = 43,051,434.05/x
  3. Step 3: Cross multiply
    78,814,963.71x = 108,764,000.54 × 43,051,434.05
  4. Step 4: Simplify right side
    78,814,963.71x = 4,682,446,196,480,070
  5. Step 5: Solve for x
    x = 4,682,446,196,480,070/78,814,963.71
  6. Step 6: Final answer
    x = 59,410,624.28

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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.