Home / 354,315,028.80-531,472,543.20-340,710,139.20

Finding the Fourth Proportional to 354,315,028.80, 531,472,543.20 and 340,710,139.20

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Solution

The fourth proportional to 354,315,028.80, 531,472,543.20 and 340,710,139.20 is: 511,065,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,315,028.80 : 531,472,543.20 = 340,710,139.20 : x
  2. Step 2: Convert to fraction form
    354,315,028.80/531,472,543.20 = 340,710,139.20/x
  3. Step 3: Cross multiply
    354,315,028.80x = 531,472,543.20 × 340,710,139.20
  4. Step 4: Simplify right side
    354,315,028.80x = 181,078,084,174,650,016
  5. Step 5: Solve for x
    x = 181,078,084,174,650,016/354,315,028.80
  6. Step 6: Final answer
    x = 511,065,208.80

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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.