Home / 144,292,406.29-199,118,185.98-78,211,485.74

Finding the Fourth Proportional to 144,292,406.29, 199,118,185.98 and 78,211,485.74

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Solution

The fourth proportional to 144,292,406.29, 199,118,185.98 and 78,211,485.74 is: 107,928,958.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,292,406.29 : 199,118,185.98 = 78,211,485.74 : x
  2. Step 2: Convert to fraction form
    144,292,406.29/199,118,185.98 = 78,211,485.74/x
  3. Step 3: Cross multiply
    144,292,406.29x = 199,118,185.98 × 78,211,485.74
  4. Step 4: Simplify right side
    144,292,406.29x = 15,573,329,162,433,700
  5. Step 5: Solve for x
    x = 15,573,329,162,433,700/144,292,406.29
  6. Step 6: Final answer
    x = 107,928,958.72

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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.