Home / 12,778,950.29-17,636,339.79-7,884,046.51

Finding the Fourth Proportional to 12,778,950.29, 17,636,339.79 and 7,884,046.51

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Solution

The fourth proportional to 12,778,950.29, 17,636,339.79 and 7,884,046.51 is: 10,880,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,950.29 : 17,636,339.79 = 7,884,046.51 : x
  2. Step 2: Convert to fraction form
    12,778,950.29/17,636,339.79 = 7,884,046.51/x
  3. Step 3: Cross multiply
    12,778,950.29x = 17,636,339.79 × 7,884,046.51
  4. Step 4: Simplify right side
    12,778,950.29x = 139,045,723,126,432.78
  5. Step 5: Solve for x
    x = 139,045,723,126,432.78/12,778,950.29
  6. Step 6: Final answer
    x = 10,880,840.76

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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.