Home / 228,360,040.32-315,139,125.12-123,939,039.36

Finding the Fourth Proportional to 228,360,040.32, 315,139,125.12 and 123,939,039.36

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Solution

The fourth proportional to 228,360,040.32, 315,139,125.12 and 123,939,039.36 is: 171,037,106.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,360,040.32 : 315,139,125.12 = 123,939,039.36 : x
  2. Step 2: Convert to fraction form
    228,360,040.32/315,139,125.12 = 123,939,039.36/x
  3. Step 3: Cross multiply
    228,360,040.32x = 315,139,125.12 × 123,939,039.36
  4. Step 4: Simplify right side
    228,360,040.32x = 39,058,040,432,123,648
  5. Step 5: Solve for x
    x = 39,058,040,432,123,648/228,360,040.32
  6. Step 6: Final answer
    x = 171,037,106.04

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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.