Home / 78,513,007.82-108,342,730.86-43,704,803.30

Finding the Fourth Proportional to 78,513,007.82, 108,342,730.86 and 43,704,803.30

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Solution

The fourth proportional to 78,513,007.82, 108,342,730.86 and 43,704,803.30 is: 60,309,722.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,513,007.82 : 108,342,730.86 = 43,704,803.30 : x
  2. Step 2: Convert to fraction form
    78,513,007.82/108,342,730.86 = 43,704,803.30/x
  3. Step 3: Cross multiply
    78,513,007.82x = 108,342,730.86 × 43,704,803.30
  4. Step 4: Simplify right side
    78,513,007.82x = 4,735,097,741,221,139
  5. Step 5: Solve for x
    x = 4,735,097,741,221,139/78,513,007.82
  6. Step 6: Final answer
    x = 60,309,722.84

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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.