Home / 155,153,639.40-214,113,508.66-85,541,516.88

Finding the Fourth Proportional to 155,153,639.40, 214,113,508.66 and 85,541,516.88

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Solution

The fourth proportional to 155,153,639.40, 214,113,508.66 and 85,541,516.88 is: 118,048,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,153,639.40 : 214,113,508.66 = 85,541,516.88 : x
  2. Step 2: Convert to fraction form
    155,153,639.40/214,113,508.66 = 85,541,516.88/x
  3. Step 3: Cross multiply
    155,153,639.40x = 214,113,508.66 × 85,541,516.88
  4. Step 4: Simplify right side
    155,153,639.40x = 18,315,594,315,275,416
  5. Step 5: Solve for x
    x = 18,315,594,315,275,416/155,153,639.40
  6. Step 6: Final answer
    x = 118,048,112.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.