Home / 139,230,726.66-208,846,128.67-51,780,817.62

Finding the Fourth Proportional to 139,230,726.66, 208,846,128.67 and 51,780,817.62

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Solution

The fourth proportional to 139,230,726.66, 208,846,128.67 and 51,780,817.62 is: 77,671,240.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,230,726.66 : 208,846,128.67 = 51,780,817.62 : x
  2. Step 2: Convert to fraction form
    139,230,726.66/208,846,128.67 = 51,780,817.62/x
  3. Step 3: Cross multiply
    139,230,726.66x = 208,846,128.67 × 51,780,817.62
  4. Step 4: Simplify right side
    139,230,726.66x = 10,814,223,299,174,870
  5. Step 5: Solve for x
    x = 10,814,223,299,174,870/139,230,726.66
  6. Step 6: Final answer
    x = 77,671,240.81

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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.