Home / 67,169,636.64-100,749,595.64-21,124,677.15

Finding the Fourth Proportional to 67,169,636.64, 100,749,595.64 and 21,124,677.15

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Solution

The fourth proportional to 67,169,636.64, 100,749,595.64 and 21,124,677.15 is: 31,685,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,169,636.64 : 100,749,595.64 = 21,124,677.15 : x
  2. Step 2: Convert to fraction form
    67,169,636.64/100,749,595.64 = 21,124,677.15/x
  3. Step 3: Cross multiply
    67,169,636.64x = 100,749,595.64 × 21,124,677.15
  4. Step 4: Simplify right side
    67,169,636.64x = 2,128,302,680,782,424.25
  5. Step 5: Solve for x
    x = 2,128,302,680,782,424.25/67,169,636.64
  6. Step 6: Final answer
    x = 31,685,487.48

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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.