Home / 521,902,867.86-720,228,804.90-307,330,874.10

Finding the Fourth Proportional to 521,902,867.86, 720,228,804.90 and 307,330,874.10

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Solution

The fourth proportional to 521,902,867.86, 720,228,804.90 and 307,330,874.10 is: 424,118,282.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,902,867.86 : 720,228,804.90 = 307,330,874.10 : x
  2. Step 2: Convert to fraction form
    521,902,867.86/720,228,804.90 = 307,330,874.10/x
  3. Step 3: Cross multiply
    521,902,867.86x = 720,228,804.90 × 307,330,874.10
  4. Step 4: Simplify right side
    521,902,867.86x = 221,348,548,161,915,360
  5. Step 5: Solve for x
    x = 221,348,548,161,915,360/521,902,867.86
  6. Step 6: Final answer
    x = 424,118,282.91

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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.