Home / 127,939,664.80-191,909,497.20-84,857,514.40

Finding the Fourth Proportional to 127,939,664.80, 191,909,497.20 and 84,857,514.40

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Solution

The fourth proportional to 127,939,664.80, 191,909,497.20 and 84,857,514.40 is: 127,286,271.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,939,664.80 : 191,909,497.20 = 84,857,514.40 : x
  2. Step 2: Convert to fraction form
    127,939,664.80/191,909,497.20 = 84,857,514.40/x
  3. Step 3: Cross multiply
    127,939,664.80x = 191,909,497.20 × 84,857,514.40
  4. Step 4: Simplify right side
    127,939,664.80x = 16,284,962,922,145,760
  5. Step 5: Solve for x
    x = 16,284,962,922,145,760/127,939,664.80
  6. Step 6: Final answer
    x = 127,286,271.60

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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.