Home / 287,827,274.43-397,201,635.90-155,668,267.14

Finding the Fourth Proportional to 287,827,274.43, 397,201,635.90 and 155,668,267.14

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Solution

The fourth proportional to 287,827,274.43, 397,201,635.90 and 155,668,267.14 is: 214,822,207.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,827,274.43 : 397,201,635.90 = 155,668,267.14 : x
  2. Step 2: Convert to fraction form
    287,827,274.43/397,201,635.90 = 155,668,267.14/x
  3. Step 3: Cross multiply
    287,827,274.43x = 397,201,635.90 × 155,668,267.14
  4. Step 4: Simplify right side
    287,827,274.43x = 61,831,690,365,726,208
  5. Step 5: Solve for x
    x = 61,831,690,365,726,208/287,827,274.43
  6. Step 6: Final answer
    x = 214,822,207.14

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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.