Home / 144,292,385.81-199,118,157.81-78,211,465.29

Finding the Fourth Proportional to 144,292,385.81, 199,118,157.81 and 78,211,465.29

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Solution

The fourth proportional to 144,292,385.81, 199,118,157.81 and 78,211,465.29 is: 107,928,930.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,292,385.81 : 199,118,157.81 = 78,211,465.29 : x
  2. Step 2: Convert to fraction form
    144,292,385.81/199,118,157.81 = 78,211,465.29/x
  3. Step 3: Cross multiply
    144,292,385.81x = 199,118,157.81 × 78,211,465.29
  4. Step 4: Simplify right side
    144,292,385.81x = 15,573,322,888,165,558
  5. Step 5: Solve for x
    x = 15,573,322,888,165,558/144,292,385.81
  6. Step 6: Final answer
    x = 107,928,930.56

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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.