Home / 201,414,722,091.83-278,077,779,566.54-128,212,271,439.85

Finding the Fourth Proportional to 201,414,722,091.83, 278,077,779,566.54 and 128,212,271,439.85

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Solution

The fourth proportional to 201,414,722,091.83, 278,077,779,566.54 and 128,212,271,439.85 is: 177,012,799,188.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,414,722,091.83 : 278,077,779,566.54 = 128,212,271,439.85 : x
  2. Step 2: Convert to fraction form
    201,414,722,091.83/278,077,779,566.54 = 128,212,271,439.85/x
  3. Step 3: Cross multiply
    201,414,722,091.83x = 278,077,779,566.54 × 128,212,271,439.85
  4. Step 4: Simplify right side
    201,414,722,091.83x = 35,652,983,755,176,000,094,208
  5. Step 5: Solve for x
    x = 35,652,983,755,176,000,094,208/201,414,722,091.83
  6. Step 6: Final answer
    x = 177,012,799,188.14

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1.5x scale

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.