Home / 92,669,009.20-139,053,280.20-38,821,764.40

Finding the Fourth Proportional to 92,669,009.20, 139,053,280.20 and 38,821,764.40

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Solution

The fourth proportional to 92,669,009.20, 139,053,280.20 and 38,821,764.40 is: 58,253,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,669,009.20 : 139,053,280.20 = 38,821,764.40 : x
  2. Step 2: Convert to fraction form
    92,669,009.20/139,053,280.20 = 38,821,764.40/x
  3. Step 3: Cross multiply
    92,669,009.20x = 139,053,280.20 × 38,821,764.40
  4. Step 4: Simplify right side
    92,669,009.20x = 5,398,293,682,971,584
  5. Step 5: Solve for x
    x = 5,398,293,682,971,584/92,669,009.20
  6. Step 6: Final answer
    x = 58,253,495.20

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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.