Home / 144,292,384.81-199,118,156.43-78,211,464.29

Finding the Fourth Proportional to 144,292,384.81, 199,118,156.43 and 78,211,464.29

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Solution

The fourth proportional to 144,292,384.81, 199,118,156.43 and 78,211,464.29 is: 107,928,929.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,292,384.81 : 199,118,156.43 = 78,211,464.29 : x
  2. Step 2: Convert to fraction form
    144,292,384.81/199,118,156.43 = 78,211,464.29/x
  3. Step 3: Cross multiply
    144,292,384.81x = 199,118,156.43 × 78,211,464.29
  4. Step 4: Simplify right side
    144,292,384.81x = 15,573,322,581,067,282
  5. Step 5: Solve for x
    x = 15,573,322,581,067,282/144,292,384.81
  6. Step 6: Final answer
    x = 107,928,929.18

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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.