Home / 127,623,786.40-191,435,679.60-36,756,560.80

Finding the Fourth Proportional to 127,623,786.40, 191,435,679.60 and 36,756,560.80

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Solution

The fourth proportional to 127,623,786.40, 191,435,679.60 and 36,756,560.80 is: 55,134,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,623,786.40 : 191,435,679.60 = 36,756,560.80 : x
  2. Step 2: Convert to fraction form
    127,623,786.40/191,435,679.60 = 36,756,560.80/x
  3. Step 3: Cross multiply
    127,623,786.40x = 191,435,679.60 × 36,756,560.80
  4. Step 4: Simplify right side
    127,623,786.40x = 7,036,517,196,506,719
  5. Step 5: Solve for x
    x = 7,036,517,196,506,719/127,623,786.40
  6. Step 6: Final answer
    x = 55,134,841.20

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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.