Home / 387,994,660.89-535,352,703.05-222,950,343.93

Finding the Fourth Proportional to 387,994,660.89, 535,352,703.05 and 222,950,343.93

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Solution

The fourth proportional to 387,994,660.89, 535,352,703.05 and 222,950,343.93 is: 307,625,545.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,994,660.89 : 535,352,703.05 = 222,950,343.93 : x
  2. Step 2: Convert to fraction form
    387,994,660.89/535,352,703.05 = 222,950,343.93/x
  3. Step 3: Cross multiply
    387,994,660.89x = 535,352,703.05 × 222,950,343.93
  4. Step 4: Simplify right side
    387,994,660.89x = 119,357,069,267,737,920
  5. Step 5: Solve for x
    x = 119,357,069,267,737,920/387,994,660.89
  6. Step 6: Final answer
    x = 307,625,545.66

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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.