Home / 144,652,007.42-199,621,585.71-78,573,609.12

Finding the Fourth Proportional to 144,652,007.42, 199,621,585.71 and 78,573,609.12

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Solution

The fourth proportional to 144,652,007.42, 199,621,585.71 and 78,573,609.12 is: 108,432,566.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,652,007.42 : 199,621,585.71 = 78,573,609.12 : x
  2. Step 2: Convert to fraction form
    144,652,007.42/199,621,585.71 = 78,573,609.12/x
  3. Step 3: Cross multiply
    144,652,007.42x = 199,621,585.71 × 78,573,609.12
  4. Step 4: Simplify right side
    144,652,007.42x = 15,684,988,447,492,120
  5. Step 5: Solve for x
    x = 15,684,988,447,492,120/144,652,007.42
  6. Step 6: Final answer
    x = 108,432,566.74

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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.