Home / 707,437,089.37-976,266,968.92-405,998,363.64

Finding the Fourth Proportional to 707,437,089.37, 976,266,968.92 and 405,998,363.64

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Solution

The fourth proportional to 707,437,089.37, 976,266,968.92 and 405,998,363.64 is: 560,279,914.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,437,089.37 : 976,266,968.92 = 405,998,363.64 : x
  2. Step 2: Convert to fraction form
    707,437,089.37/976,266,968.92 = 405,998,363.64/x
  3. Step 3: Cross multiply
    707,437,089.37x = 976,266,968.92 × 405,998,363.64
  4. Step 4: Simplify right side
    707,437,089.37x = 396,362,791,860,926,848
  5. Step 5: Solve for x
    x = 396,362,791,860,926,848/707,437,089.37
  6. Step 6: Final answer
    x = 560,279,914.38

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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.