Home / 808,587,254.42-1,115,850,412.86-437,309,285.78

Finding the Fourth Proportional to 808,587,254.42, 1,115,850,412.86 and 437,309,285.78

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Solution

The fourth proportional to 808,587,254.42, 1,115,850,412.86 and 437,309,285.78 is: 603,486,815.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,587,254.42 : 1,115,850,412.86 = 437,309,285.78 : x
  2. Step 2: Convert to fraction form
    808,587,254.42/1,115,850,412.86 = 437,309,285.78/x
  3. Step 3: Cross multiply
    808,587,254.42x = 1,115,850,412.86 × 437,309,285.78
  4. Step 4: Simplify right side
    808,587,254.42x = 487,971,747,085,124,672
  5. Step 5: Solve for x
    x = 487,971,747,085,124,672/808,587,254.42
  6. Step 6: Final answer
    x = 603,486,815.33

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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.