Home / 690,525,115.50-952,925,041.68-372,985,359.92

Finding the Fourth Proportional to 690,525,115.50, 952,925,041.68 and 372,985,359.92

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Solution

The fourth proportional to 690,525,115.50, 952,925,041.68 and 372,985,359.92 is: 514,720,003.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,525,115.50 : 952,925,041.68 = 372,985,359.92 : x
  2. Step 2: Convert to fraction form
    690,525,115.50/952,925,041.68 = 372,985,359.92/x
  3. Step 3: Cross multiply
    690,525,115.50x = 952,925,041.68 × 372,985,359.92
  4. Step 4: Simplify right side
    690,525,115.50x = 355,427,089,647,795,776
  5. Step 5: Solve for x
    x = 355,427,089,647,795,776/690,525,115.50
  6. Step 6: Final answer
    x = 514,720,003.18

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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.