Home / 78,834,941.88-118,225,021.86-43,873,404.36

Finding the Fourth Proportional to 78,834,941.88, 118,225,021.86 and 43,873,404.36

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Solution

The fourth proportional to 78,834,941.88, 118,225,021.86 and 43,873,404.36 is: 65,794,862.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,834,941.88 : 118,225,021.86 = 43,873,404.36 : x
  2. Step 2: Convert to fraction form
    78,834,941.88/118,225,021.86 = 43,873,404.36/x
  3. Step 3: Cross multiply
    78,834,941.88x = 118,225,021.86 × 43,873,404.36
  4. Step 4: Simplify right side
    78,834,941.88x = 5,186,934,189,533,619
  5. Step 5: Solve for x
    x = 5,186,934,189,533,619/78,834,941.88
  6. Step 6: Final answer
    x = 65,794,862.86

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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.