Home / 78,392,173.65-108,187,259.37-47,031,402.84

Finding the Fourth Proportional to 78,392,173.65, 108,187,259.37 and 47,031,402.84

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Solution

The fourth proportional to 78,392,173.65, 108,187,259.37 and 47,031,402.84 is: 64,906,971.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,392,173.65 : 108,187,259.37 = 47,031,402.84 : x
  2. Step 2: Convert to fraction form
    78,392,173.65/108,187,259.37 = 47,031,402.84/x
  3. Step 3: Cross multiply
    78,392,173.65x = 108,187,259.37 × 47,031,402.84
  4. Step 4: Simplify right side
    78,392,173.65x = 5,088,198,577,586,035
  5. Step 5: Solve for x
    x = 5,088,198,577,586,035/78,392,173.65
  6. Step 6: Final answer
    x = 64,906,971.46

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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.