Home / 165,931,859.43-248,971,215.15-87,129,829.89

Finding the Fourth Proportional to 165,931,859.43, 248,971,215.15 and 87,129,829.89

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Solution

The fourth proportional to 165,931,859.43, 248,971,215.15 and 87,129,829.89 is: 130,733,300.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,931,859.43 : 248,971,215.15 = 87,129,829.89 : x
  2. Step 2: Convert to fraction form
    165,931,859.43/248,971,215.15 = 87,129,829.89/x
  3. Step 3: Cross multiply
    165,931,859.43x = 248,971,215.15 × 87,129,829.89
  4. Step 4: Simplify right side
    165,931,859.43x = 21,692,819,623,526,092
  5. Step 5: Solve for x
    x = 21,692,819,623,526,092/165,931,859.43
  6. Step 6: Final answer
    x = 130,733,300.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.