Home / 140,433,666.30-210,650,499.45-86,014,107.90

Finding the Fourth Proportional to 140,433,666.30, 210,650,499.45 and 86,014,107.90

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Solution

The fourth proportional to 140,433,666.30, 210,650,499.45 and 86,014,107.90 is: 129,021,161.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,433,666.30 : 210,650,499.45 = 86,014,107.90 : x
  2. Step 2: Convert to fraction form
    140,433,666.30/210,650,499.45 = 86,014,107.90/x
  3. Step 3: Cross multiply
    140,433,666.30x = 210,650,499.45 × 86,014,107.90
  4. Step 4: Simplify right side
    140,433,666.30x = 18,118,914,788,881,192
  5. Step 5: Solve for x
    x = 18,118,914,788,881,192/140,433,666.30
  6. Step 6: Final answer
    x = 129,021,161.85

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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.