Home / 520,815,303.48-718,722,594.74-285,869,961.24

Finding the Fourth Proportional to 520,815,303.48, 718,722,594.74 and 285,869,961.24

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Solution

The fourth proportional to 520,815,303.48, 718,722,594.74 and 285,869,961.24 is: 394,499,161.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,815,303.48 : 718,722,594.74 = 285,869,961.24 : x
  2. Step 2: Convert to fraction form
    520,815,303.48/718,722,594.74 = 285,869,961.24/x
  3. Step 3: Cross multiply
    520,815,303.48x = 718,722,594.74 × 285,869,961.24
  4. Step 4: Simplify right side
    520,815,303.48x = 205,461,200,300,636,032
  5. Step 5: Solve for x
    x = 205,461,200,300,636,032/520,815,303.48
  6. Step 6: Final answer
    x = 394,499,161.08

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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.