Home / 520,582,897.96-718,417,618.90-285,633,496.16

Finding the Fourth Proportional to 520,582,897.96, 718,417,618.90 and 285,633,496.16

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Solution

The fourth proportional to 520,582,897.96, 718,417,618.90 and 285,633,496.16 is: 394,181,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,582,897.96 : 718,417,618.90 = 285,633,496.16 : x
  2. Step 2: Convert to fraction form
    520,582,897.96/718,417,618.90 = 285,633,496.16/x
  3. Step 3: Cross multiply
    520,582,897.96x = 718,417,618.90 × 285,633,496.16
  4. Step 4: Simplify right side
    520,582,897.96x = 205,204,136,189,349,504
  5. Step 5: Solve for x
    x = 205,204,136,189,349,504/520,582,897.96
  6. Step 6: Final answer
    x = 394,181,478.10

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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.