Home / 144,847,880.04-199,891,497.80-78,769,814.21

Finding the Fourth Proportional to 144,847,880.04, 199,891,497.80 and 78,769,814.21

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Solution

The fourth proportional to 144,847,880.04, 199,891,497.80 and 78,769,814.21 is: 108,703,117.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,847,880.04 : 199,891,497.80 = 78,769,814.21 : x
  2. Step 2: Convert to fraction form
    144,847,880.04/199,891,497.80 = 78,769,814.21/x
  3. Step 3: Cross multiply
    144,847,880.04x = 199,891,497.80 × 78,769,814.21
  4. Step 4: Simplify right side
    144,847,880.04x = 15,745,416,142,471,316
  5. Step 5: Solve for x
    x = 15,745,416,142,471,316/144,847,880.04
  6. Step 6: Final answer
    x = 108,703,117.63

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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.