Home / 223,102,386.15-307,888,769.59-123,987,311.05

Finding the Fourth Proportional to 223,102,386.15, 307,888,769.59 and 123,987,311.05

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Solution

The fourth proportional to 223,102,386.15, 307,888,769.59 and 123,987,311.05 is: 171,106,644.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,102,386.15 : 307,888,769.59 = 123,987,311.05 : x
  2. Step 2: Convert to fraction form
    223,102,386.15/307,888,769.59 = 123,987,311.05/x
  3. Step 3: Cross multiply
    223,102,386.15x = 307,888,769.59 × 123,987,311.05
  4. Step 4: Simplify right side
    223,102,386.15x = 38,174,300,643,957,104
  5. Step 5: Solve for x
    x = 38,174,300,643,957,104/223,102,386.15
  6. Step 6: Final answer
    x = 171,106,644.37

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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.