Home / 315,552,647.40-473,105,022.30-121,389,037.80

Finding the Fourth Proportional to 315,552,647.40, 473,105,022.30 and 121,389,037.80

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Solution

The fourth proportional to 315,552,647.40, 473,105,022.30 and 121,389,037.80 is: 181,997,406.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,552,647.40 : 473,105,022.30 = 121,389,037.80 : x
  2. Step 2: Convert to fraction form
    315,552,647.40/473,105,022.30 = 121,389,037.80/x
  3. Step 3: Cross multiply
    315,552,647.40x = 473,105,022.30 × 121,389,037.80
  4. Step 4: Simplify right side
    315,552,647.40x = 57,429,763,435,344,544
  5. Step 5: Solve for x
    x = 57,429,763,435,344,544/315,552,647.40
  6. Step 6: Final answer
    x = 181,997,406.48

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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.