Home / 258,186,583.78-387,355,859.02-83,306,337.07

Finding the Fourth Proportional to 258,186,583.78, 387,355,859.02 and 83,306,337.07

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Solution

The fourth proportional to 258,186,583.78, 387,355,859.02 and 83,306,337.07 is: 124,984,022.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,186,583.78 : 387,355,859.02 = 83,306,337.07 : x
  2. Step 2: Convert to fraction form
    258,186,583.78/387,355,859.02 = 83,306,337.07/x
  3. Step 3: Cross multiply
    258,186,583.78x = 387,355,859.02 × 83,306,337.07
  4. Step 4: Simplify right side
    258,186,583.78x = 32,269,197,757,472,104
  5. Step 5: Solve for x
    x = 32,269,197,757,472,104/258,186,583.78
  6. Step 6: Final answer
    x = 124,984,022.35

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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.