Home / 144,137,651.28-198,908,968.32-78,056,637.36

Finding the Fourth Proportional to 144,137,651.28, 198,908,968.32 and 78,056,637.36

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Solution

The fourth proportional to 144,137,651.28, 198,908,968.32 and 78,056,637.36 is: 107,717,623.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,137,651.28 : 198,908,968.32 = 78,056,637.36 : x
  2. Step 2: Convert to fraction form
    144,137,651.28/198,908,968.32 = 78,056,637.36/x
  3. Step 3: Cross multiply
    144,137,651.28x = 198,908,968.32 × 78,056,637.36
  4. Step 4: Simplify right side
    144,137,651.28x = 15,526,165,207,805,968
  5. Step 5: Solve for x
    x = 15,526,165,207,805,968/144,137,651.28
  6. Step 6: Final answer
    x = 107,717,623.19

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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.