Home / 385,073,902.80-577,466,085.74-139,369,832.82

Finding the Fourth Proportional to 385,073,902.80, 577,466,085.74 and 139,369,832.82

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Solution

The fourth proportional to 385,073,902.80, 577,466,085.74 and 139,369,832.82 is: 209,002,353.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,073,902.80 : 577,466,085.74 = 139,369,832.82 : x
  2. Step 2: Convert to fraction form
    385,073,902.80/577,466,085.74 = 139,369,832.82/x
  3. Step 3: Cross multiply
    385,073,902.80x = 577,466,085.74 × 139,369,832.82
  4. Step 4: Simplify right side
    385,073,902.80x = 80,481,351,828,106,736
  5. Step 5: Solve for x
    x = 80,481,351,828,106,736/385,073,902.80
  6. Step 6: Final answer
    x = 209,002,353.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.