Home / 695,887,998,523.56-960,409,039,045.08-421,525,600,821.72

Finding the Fourth Proportional to 695,887,998,523.56, 960,409,039,045.08 and 421,525,600,821.72

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Solution

The fourth proportional to 695,887,998,523.56, 960,409,039,045.08 and 421,525,600,821.72 is: 581,755,969,462.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,887,998,523.56 : 960,409,039,045.08 = 421,525,600,821.72 : x
  2. Step 2: Convert to fraction form
    695,887,998,523.56/960,409,039,045.08 = 421,525,600,821.72/x
  3. Step 3: Cross multiply
    695,887,998,523.56x = 960,409,039,045.08 × 421,525,600,821.72
  4. Step 4: Simplify right side
    695,887,998,523.56x = 404,836,997,218,088,035,287,040
  5. Step 5: Solve for x
    x = 404,836,997,218,088,035,287,040/695,887,998,523.56
  6. Step 6: Final answer
    x = 581,755,969,462.06

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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.