Home / 258,276,473.61-356,418,129.81-145,245,931.93

Finding the Fourth Proportional to 258,276,473.61, 356,418,129.81 and 145,245,931.93

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Solution

The fourth proportional to 258,276,473.61, 356,418,129.81 and 145,245,931.93 is: 200,437,471.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,276,473.61 : 356,418,129.81 = 145,245,931.93 : x
  2. Step 2: Convert to fraction form
    258,276,473.61/356,418,129.81 = 145,245,931.93/x
  3. Step 3: Cross multiply
    258,276,473.61x = 356,418,129.81 × 145,245,931.93
  4. Step 4: Simplify right side
    258,276,473.61x = 51,768,283,419,747,008
  5. Step 5: Solve for x
    x = 51,768,283,419,747,008/258,276,473.61
  6. Step 6: Final answer
    x = 200,437,471.89

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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.