Home / 426,738,512.10-639,788,903.55-232,868,835.30

Finding the Fourth Proportional to 426,738,512.10, 639,788,903.55 and 232,868,835.30

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Solution

The fourth proportional to 426,738,512.10, 639,788,903.55 and 232,868,835.30 is: 349,129,250.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,738,512.10 : 639,788,903.55 = 232,868,835.30 : x
  2. Step 2: Convert to fraction form
    426,738,512.10/639,788,903.55 = 232,868,835.30/x
  3. Step 3: Cross multiply
    426,738,512.10x = 639,788,903.55 × 232,868,835.30
  4. Step 4: Simplify right side
    426,738,512.10x = 148,986,896,807,552,544
  5. Step 5: Solve for x
    x = 148,986,896,807,552,544/426,738,512.10
  6. Step 6: Final answer
    x = 349,129,250.31

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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.