Home / 130,828,885.20-196,243,327.80-90,014,216.40

Finding the Fourth Proportional to 130,828,885.20, 196,243,327.80 and 90,014,216.40

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Solution

The fourth proportional to 130,828,885.20, 196,243,327.80 and 90,014,216.40 is: 135,021,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,828,885.20 : 196,243,327.80 = 90,014,216.40 : x
  2. Step 2: Convert to fraction form
    130,828,885.20/196,243,327.80 = 90,014,216.40/x
  3. Step 3: Cross multiply
    130,828,885.20x = 196,243,327.80 × 90,014,216.40
  4. Step 4: Simplify right side
    130,828,885.20x = 17,664,689,375,645,338
  5. Step 5: Solve for x
    x = 17,664,689,375,645,338/130,828,885.20
  6. Step 6: Final answer
    x = 135,021,324.60

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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.