Home / 144,152,272.32-198,947,614.08-81,431,015.01

Finding the Fourth Proportional to 144,152,272.32, 198,947,614.08 and 81,431,015.01

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Solution

The fourth proportional to 144,152,272.32, 198,947,614.08 and 81,431,015.01 is: 112,384,674.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,152,272.32 : 198,947,614.08 = 81,431,015.01 : x
  2. Step 2: Convert to fraction form
    144,152,272.32/198,947,614.08 = 81,431,015.01/x
  3. Step 3: Cross multiply
    144,152,272.32x = 198,947,614.08 × 81,431,015.01
  4. Step 4: Simplify right side
    144,152,272.32x = 16,200,506,148,352,170
  5. Step 5: Solve for x
    x = 16,200,506,148,352,170/144,152,272.32
  6. Step 6: Final answer
    x = 112,384,674.12

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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.