Home / 520,879,348.68-718,810,663.26-285,934,006.50

Finding the Fourth Proportional to 520,879,348.68, 718,810,663.26 and 285,934,006.50

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Solution

The fourth proportional to 520,879,348.68, 718,810,663.26 and 285,934,006.50 is: 394,587,371.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,879,348.68 : 718,810,663.26 = 285,934,006.50 : x
  2. Step 2: Convert to fraction form
    520,879,348.68/718,810,663.26 = 285,934,006.50/x
  3. Step 3: Cross multiply
    520,879,348.68x = 718,810,663.26 × 285,934,006.50
  4. Step 4: Simplify right side
    520,879,348.68x = 205,532,412,860,854,144
  5. Step 5: Solve for x
    x = 205,532,412,860,854,144/520,879,348.68
  6. Step 6: Final answer
    x = 394,587,371.11

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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.