Home / 489,429,481.76-675,426,607.92-266,425,545.12

Finding the Fourth Proportional to 489,429,481.76, 675,426,607.92 and 266,425,545.12

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Solution

The fourth proportional to 489,429,481.76, 675,426,607.92 and 266,425,545.12 is: 367,674,831.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,429,481.76 : 675,426,607.92 = 266,425,545.12 : x
  2. Step 2: Convert to fraction form
    489,429,481.76/675,426,607.92 = 266,425,545.12/x
  3. Step 3: Cross multiply
    489,429,481.76x = 675,426,607.92 × 266,425,545.12
  4. Step 4: Simplify right side
    489,429,481.76x = 179,950,902,203,638,496
  5. Step 5: Solve for x
    x = 179,950,902,203,638,496/489,429,481.76
  6. Step 6: Final answer
    x = 367,674,831.43

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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.