Home / 354,315,014.80-531,472,522.20-340,710,125.20

Finding the Fourth Proportional to 354,315,014.80, 531,472,522.20 and 340,710,125.20

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Solution

The fourth proportional to 354,315,014.80, 531,472,522.20 and 340,710,125.20 is: 511,065,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,315,014.80 : 531,472,522.20 = 340,710,125.20 : x
  2. Step 2: Convert to fraction form
    354,315,014.80/531,472,522.20 = 340,710,125.20/x
  3. Step 3: Cross multiply
    354,315,014.80x = 531,472,522.20 × 340,710,125.20
  4. Step 4: Simplify right side
    354,315,014.80x = 181,078,069,579,121,760
  5. Step 5: Solve for x
    x = 181,078,069,579,121,760/354,315,014.80
  6. Step 6: Final answer
    x = 511,065,187.80

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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.