Home / 10,778,943.05-14,837,185.76-9,399,853.65

Finding the Fourth Proportional to 10,778,943.05, 14,837,185.76 and 9,399,853.65

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Solution

The fourth proportional to 10,778,943.05, 14,837,185.76 and 9,399,853.65 is: 12,938,872.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778,943.05 : 14,837,185.76 = 9,399,853.65 : x
  2. Step 2: Convert to fraction form
    10,778,943.05/14,837,185.76 = 9,399,853.65/x
  3. Step 3: Cross multiply
    10,778,943.05x = 14,837,185.76 × 9,399,853.65
  4. Step 4: Simplify right side
    10,778,943.05x = 139,467,374,674,864.77
  5. Step 5: Solve for x
    x = 139,467,374,674,864.77/10,778,943.05
  6. Step 6: Final answer
    x = 12,938,872.96

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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.