Home / 478,785,120.16-718,199,015.28-146,767,660.96

Finding the Fourth Proportional to 478,785,120.16, 718,199,015.28 and 146,767,660.96

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Solution

The fourth proportional to 478,785,120.16, 718,199,015.28 and 146,767,660.96 is: 220,158,031.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,785,120.16 : 718,199,015.28 = 146,767,660.96 : x
  2. Step 2: Convert to fraction form
    478,785,120.16/718,199,015.28 = 146,767,660.96/x
  3. Step 3: Cross multiply
    478,785,120.16x = 718,199,015.28 × 146,767,660.96
  4. Step 4: Simplify right side
    478,785,120.16x = 105,408,389,576,420,896
  5. Step 5: Solve for x
    x = 105,408,389,576,420,896/478,785,120.16
  6. Step 6: Final answer
    x = 220,158,031.52

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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.