Home / 78,826,221.59-118,239,339.66-23,494,913.82

Finding the Fourth Proportional to 78,826,221.59, 118,239,339.66 and 23,494,913.82

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Solution

The fourth proportional to 78,826,221.59, 118,239,339.66 and 23,494,913.82 is: 35,242,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,826,221.59 : 118,239,339.66 = 23,494,913.82 : x
  2. Step 2: Convert to fraction form
    78,826,221.59/118,239,339.66 = 23,494,913.82/x
  3. Step 3: Cross multiply
    78,826,221.59x = 118,239,339.66 × 23,494,913.82
  4. Step 4: Simplify right side
    78,826,221.59x = 2,778,023,095,445,408
  5. Step 5: Solve for x
    x = 2,778,023,095,445,408/78,826,221.59
  6. Step 6: Final answer
    x = 35,242,372.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.