Home / 123,929,484.16-185,724,163.20-78,409,791.36

Finding the Fourth Proportional to 123,929,484.16, 185,724,163.20 and 78,409,791.36

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Solution

The fourth proportional to 123,929,484.16, 185,724,163.20 and 78,409,791.36 is: 117,507,088.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,929,484.16 : 185,724,163.20 = 78,409,791.36 : x
  2. Step 2: Convert to fraction form
    123,929,484.16/185,724,163.20 = 78,409,791.36/x
  3. Step 3: Cross multiply
    123,929,484.16x = 185,724,163.20 × 78,409,791.36
  4. Step 4: Simplify right side
    123,929,484.16x = 14,562,592,887,022,588
  5. Step 5: Solve for x
    x = 14,562,592,887,022,588/123,929,484.16
  6. Step 6: Final answer
    x = 117,507,088.69

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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.