Home / 127,746,042.80-191,619,064.20-45,904,128.80

Finding the Fourth Proportional to 127,746,042.80, 191,619,064.20 and 45,904,128.80

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Solution

The fourth proportional to 127,746,042.80, 191,619,064.20 and 45,904,128.80 is: 68,856,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,746,042.80 : 191,619,064.20 = 45,904,128.80 : x
  2. Step 2: Convert to fraction form
    127,746,042.80/191,619,064.20 = 45,904,128.80/x
  3. Step 3: Cross multiply
    127,746,042.80x = 191,619,064.20 × 45,904,128.80
  4. Step 4: Simplify right side
    127,746,042.80x = 8,796,106,203,572,268
  5. Step 5: Solve for x
    x = 8,796,106,203,572,268/127,746,042.80
  6. Step 6: Final answer
    x = 68,856,193.20

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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.