Home / 144,995,671.80-200,094,015.90-78,916,643.88

Finding the Fourth Proportional to 144,995,671.80, 200,094,015.90 and 78,916,643.88

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Solution

The fourth proportional to 144,995,671.80, 200,094,015.90 and 78,916,643.88 is: 108,904,962.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,995,671.80 : 200,094,015.90 = 78,916,643.88 : x
  2. Step 2: Convert to fraction form
    144,995,671.80/200,094,015.90 = 78,916,643.88/x
  3. Step 3: Cross multiply
    144,995,671.80x = 200,094,015.90 × 78,916,643.88
  4. Step 4: Simplify right side
    144,995,671.80x = 15,790,748,195,299,358
  5. Step 5: Solve for x
    x = 15,790,748,195,299,358/144,995,671.80
  6. Step 6: Final answer
    x = 108,904,962.47

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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.