Home / 398,359,486.80-597,539,230.20-330,335,038.80

Finding the Fourth Proportional to 398,359,486.80, 597,539,230.20 and 330,335,038.80

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Solution

The fourth proportional to 398,359,486.80, 597,539,230.20 and 330,335,038.80 is: 495,502,558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,359,486.80 : 597,539,230.20 = 330,335,038.80 : x
  2. Step 2: Convert to fraction form
    398,359,486.80/597,539,230.20 = 330,335,038.80/x
  3. Step 3: Cross multiply
    398,359,486.80x = 597,539,230.20 × 330,335,038.80
  4. Step 4: Simplify right side
    398,359,486.80x = 197,388,144,792,639,168
  5. Step 5: Solve for x
    x = 197,388,144,792,639,168/398,359,486.80
  6. Step 6: Final answer
    x = 495,502,558.20

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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.