Home / 255,688,606,621.80-383,618,086,585.20-85,725,013,874.76

Finding the Fourth Proportional to 255,688,606,621.80, 383,618,086,585.20 and 85,725,013,874.76

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Solution

The fourth proportional to 255,688,606,621.80, 383,618,086,585.20 and 85,725,013,874.76 is: 128,616,078,086.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,688,606,621.80 : 383,618,086,585.20 = 85,725,013,874.76 : x
  2. Step 2: Convert to fraction form
    255,688,606,621.80/383,618,086,585.20 = 85,725,013,874.76/x
  3. Step 3: Cross multiply
    255,688,606,621.80x = 383,618,086,585.20 × 85,725,013,874.76
  4. Step 4: Simplify right side
    255,688,606,621.80x = 32,885,665,795,125,150,744,576
  5. Step 5: Solve for x
    x = 32,885,665,795,125,150,744,576/255,688,606,621.80
  6. Step 6: Final answer
    x = 128,616,078,086.61

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1.5x scale

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.