Home / 144,292,405.07-199,118,184.31-78,211,484.51

Finding the Fourth Proportional to 144,292,405.07, 199,118,184.31 and 78,211,484.51

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Solution

The fourth proportional to 144,292,405.07, 199,118,184.31 and 78,211,484.51 is: 107,928,957.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,292,405.07 : 199,118,184.31 = 78,211,484.51 : x
  2. Step 2: Convert to fraction form
    144,292,405.07/199,118,184.31 = 78,211,484.51/x
  3. Step 3: Cross multiply
    144,292,405.07x = 199,118,184.31 × 78,211,484.51
  4. Step 4: Simplify right side
    144,292,405.07x = 15,573,328,787,820,892
  5. Step 5: Solve for x
    x = 15,573,328,787,820,892/144,292,405.07
  6. Step 6: Final answer
    x = 107,928,957.04

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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.