Home / 101,280,039.77-139,767,125.91-54,870,293.70

Finding the Fourth Proportional to 101,280,039.77, 139,767,125.91 and 54,870,293.70

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Solution

The fourth proportional to 101,280,039.77, 139,767,125.91 and 54,870,293.70 is: 75,721,368.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,280,039.77 : 139,767,125.91 = 54,870,293.70 : x
  2. Step 2: Convert to fraction form
    101,280,039.77/139,767,125.91 = 54,870,293.70/x
  3. Step 3: Cross multiply
    101,280,039.77x = 139,767,125.91 × 54,870,293.70
  4. Step 4: Simplify right side
    101,280,039.77x = 7,669,063,248,080,817
  5. Step 5: Solve for x
    x = 7,669,063,248,080,817/101,280,039.77
  6. Step 6: Final answer
    x = 75,721,368.84

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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.