Home / 102,621,747.40-154,019,712.30-42,080,921.80

Finding the Fourth Proportional to 102,621,747.40, 154,019,712.30 and 42,080,921.80

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Solution

The fourth proportional to 102,621,747.40, 154,019,712.30 and 42,080,921.80 is: 63,157,095.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,621,747.40 : 154,019,712.30 = 42,080,921.80 : x
  2. Step 2: Convert to fraction form
    102,621,747.40/154,019,712.30 = 42,080,921.80/x
  3. Step 3: Cross multiply
    102,621,747.40x = 154,019,712.30 × 42,080,921.80
  4. Step 4: Simplify right side
    102,621,747.40x = 6,481,291,468,954,798
  5. Step 5: Solve for x
    x = 6,481,291,468,954,798/102,621,747.40
  6. Step 6: Final answer
    x = 63,157,095.19

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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.