Home / 127,614,965.40-191,422,448.10-76,470,658.20

Finding the Fourth Proportional to 127,614,965.40, 191,422,448.10 and 76,470,658.20

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Solution

The fourth proportional to 127,614,965.40, 191,422,448.10 and 76,470,658.20 is: 114,705,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,614,965.40 : 191,422,448.10 = 76,470,658.20 : x
  2. Step 2: Convert to fraction form
    127,614,965.40/191,422,448.10 = 76,470,658.20/x
  3. Step 3: Cross multiply
    127,614,965.40x = 191,422,448.10 × 76,470,658.20
  4. Step 4: Simplify right side
    127,614,965.40x = 14,638,200,600,462,340
  5. Step 5: Solve for x
    x = 14,638,200,600,462,340/127,614,965.40
  6. Step 6: Final answer
    x = 114,705,987.30

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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.