Home / 143,551,938.91-198,075,544.54-80,818,281.31

Finding the Fourth Proportional to 143,551,938.91, 198,075,544.54 and 80,818,281.31

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Solution

The fourth proportional to 143,551,938.91, 198,075,544.54 and 80,818,281.31 is: 111,514,516.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,551,938.91 : 198,075,544.54 = 80,818,281.31 : x
  2. Step 2: Convert to fraction form
    143,551,938.91/198,075,544.54 = 80,818,281.31/x
  3. Step 3: Cross multiply
    143,551,938.91x = 198,075,544.54 × 80,818,281.31
  4. Step 4: Simplify right side
    143,551,938.91x = 16,008,125,079,265,154
  5. Step 5: Solve for x
    x = 16,008,125,079,265,154/143,551,938.91
  6. Step 6: Final answer
    x = 111,514,516.63

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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.