Home / 144,146,467.96-198,921,139.95-78,065,446.48

Finding the Fourth Proportional to 144,146,467.96, 198,921,139.95 and 78,065,446.48

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Solution

The fourth proportional to 144,146,467.96, 198,921,139.95 and 78,065,446.48 is: 107,729,782.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,146,467.96 : 198,921,139.95 = 78,065,446.48 : x
  2. Step 2: Convert to fraction form
    144,146,467.96/198,921,139.95 = 78,065,446.48/x
  3. Step 3: Cross multiply
    144,146,467.96x = 198,921,139.95 × 78,065,446.48
  4. Step 4: Simplify right side
    144,146,467.96x = 15,528,867,604,507,314
  5. Step 5: Solve for x
    x = 15,528,867,604,507,314/144,146,467.96
  6. Step 6: Final answer
    x = 107,729,782.24

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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.