Home / 78,457,757.88-108,210,357.90-50,964,543.48

Finding the Fourth Proportional to 78,457,757.88, 108,210,357.90 and 50,964,543.48

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Solution

The fourth proportional to 78,457,757.88, 108,210,357.90 and 50,964,543.48 is: 70,291,219.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,457,757.88 : 108,210,357.90 = 50,964,543.48 : x
  2. Step 2: Convert to fraction form
    78,457,757.88/108,210,357.90 = 50,964,543.48/x
  3. Step 3: Cross multiply
    78,457,757.88x = 108,210,357.90 × 50,964,543.48
  4. Step 4: Simplify right side
    78,457,757.88x = 5,514,891,490,180,911
  5. Step 5: Solve for x
    x = 5,514,891,490,180,911/78,457,757.88
  6. Step 6: Final answer
    x = 70,291,219.62

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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.