Home / 315,578,475.40-473,143,764.30-121,414,865.80

Finding the Fourth Proportional to 315,578,475.40, 473,143,764.30 and 121,414,865.80

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Solution

The fourth proportional to 315,578,475.40, 473,143,764.30 and 121,414,865.80 is: 182,036,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,578,475.40 : 473,143,764.30 = 121,414,865.80 : x
  2. Step 2: Convert to fraction form
    315,578,475.40/473,143,764.30 = 121,414,865.80/x
  3. Step 3: Cross multiply
    315,578,475.40x = 473,143,764.30 × 121,414,865.80
  4. Step 4: Simplify right side
    315,578,475.40x = 57,446,686,646,591,328
  5. Step 5: Solve for x
    x = 57,446,686,646,591,328/315,578,475.40
  6. Step 6: Final answer
    x = 182,036,137.20

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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.