Home / 78,388,156.83-108,181,707.66-47,027,380.35

Finding the Fourth Proportional to 78,388,156.83, 108,181,707.66 and 47,027,380.35

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Solution

The fourth proportional to 78,388,156.83, 108,181,707.66 and 47,027,380.35 is: 64,901,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,388,156.83 : 108,181,707.66 = 47,027,380.35 : x
  2. Step 2: Convert to fraction form
    78,388,156.83/108,181,707.66 = 47,027,380.35/x
  3. Step 3: Cross multiply
    78,388,156.83x = 108,181,707.66 × 47,027,380.35
  4. Step 4: Simplify right side
    78,388,156.83x = 5,087,502,313,039,328
  5. Step 5: Solve for x
    x = 5,087,502,313,039,328/78,388,156.83
  6. Step 6: Final answer
    x = 64,901,415.20

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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.