Home / 287,753,377.02-397,099,380.18-155,594,057.28

Finding the Fourth Proportional to 287,753,377.02, 397,099,380.18 and 155,594,057.28

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Solution

The fourth proportional to 287,753,377.02, 397,099,380.18 and 155,594,057.28 is: 214,719,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,753,377.02 : 397,099,380.18 = 155,594,057.28 : x
  2. Step 2: Convert to fraction form
    287,753,377.02/397,099,380.18 = 155,594,057.28/x
  3. Step 3: Cross multiply
    287,753,377.02x = 397,099,380.18 × 155,594,057.28
  4. Step 4: Simplify right side
    287,753,377.02x = 61,786,303,705,579,416
  5. Step 5: Solve for x
    x = 61,786,303,705,579,416/287,753,377.02
  6. Step 6: Final answer
    x = 214,719,647.59

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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.