Home / 409,187,215.86-614,168,864.10-253,269,385.98

Finding the Fourth Proportional to 409,187,215.86, 614,168,864.10 and 253,269,385.98

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Solution

The fourth proportional to 409,187,215.86, 614,168,864.10 and 253,269,385.98 is: 380,144,259.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,187,215.86 : 614,168,864.10 = 253,269,385.98 : x
  2. Step 2: Convert to fraction form
    409,187,215.86/614,168,864.10 = 253,269,385.98/x
  3. Step 3: Cross multiply
    409,187,215.86x = 614,168,864.10 × 253,269,385.98
  4. Step 4: Simplify right side
    409,187,215.86x = 155,550,171,098,641,056
  5. Step 5: Solve for x
    x = 155,550,171,098,641,056/409,187,215.86
  6. Step 6: Final answer
    x = 380,144,259.33

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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.