Home / 288,170,973.80-397,671,972.90-157,790,781.80

Finding the Fourth Proportional to 288,170,973.80, 397,671,972.90 and 157,790,781.80

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Solution

The fourth proportional to 288,170,973.80, 397,671,972.90 and 157,790,781.80 is: 217,749,104.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,170,973.80 : 397,671,972.90 = 157,790,781.80 : x
  2. Step 2: Convert to fraction form
    288,170,973.80/397,671,972.90 = 157,790,781.80/x
  3. Step 3: Cross multiply
    288,170,973.80x = 397,671,972.90 × 157,790,781.80
  4. Step 4: Simplify right side
    288,170,973.80x = 62,748,971,503,839,416
  5. Step 5: Solve for x
    x = 62,748,971,503,839,416/288,170,973.80
  6. Step 6: Final answer
    x = 217,749,104.56

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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.