Home / 79,189,404.80-118,689,628.80-71,064,262.40

Finding the Fourth Proportional to 79,189,404.80, 118,689,628.80 and 71,064,262.40

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Solution

The fourth proportional to 79,189,404.80, 118,689,628.80 and 71,064,262.40 is: 106,511,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,189,404.80 : 118,689,628.80 = 71,064,262.40 : x
  2. Step 2: Convert to fraction form
    79,189,404.80/118,689,628.80 = 71,064,262.40/x
  3. Step 3: Cross multiply
    79,189,404.80x = 118,689,628.80 × 71,064,262.40
  4. Step 4: Simplify right side
    79,189,404.80x = 8,434,590,925,201,798
  5. Step 5: Solve for x
    x = 8,434,590,925,201,798/79,189,404.80
  6. Step 6: Final answer
    x = 106,511,609.05

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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.