Home / 127,575,428.40-191,363,142.60-120,856,964.40

Finding the Fourth Proportional to 127,575,428.40, 191,363,142.60 and 120,856,964.40

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Solution

The fourth proportional to 127,575,428.40, 191,363,142.60 and 120,856,964.40 is: 181,285,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,575,428.40 : 191,363,142.60 = 120,856,964.40 : x
  2. Step 2: Convert to fraction form
    127,575,428.40/191,363,142.60 = 120,856,964.40/x
  3. Step 3: Cross multiply
    127,575,428.40x = 191,363,142.60 × 120,856,964.40
  4. Step 4: Simplify right side
    127,575,428.40x = 23,127,568,512,680,324
  5. Step 5: Solve for x
    x = 23,127,568,512,680,324/127,575,428.40
  6. Step 6: Final answer
    x = 181,285,446.60

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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.