Home / 126,243,615.40-189,216,123.90-65,628,140.20

Finding the Fourth Proportional to 126,243,615.40, 189,216,123.90 and 65,628,140.20

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Solution

The fourth proportional to 126,243,615.40, 189,216,123.90 and 65,628,140.20 is: 98,364,596.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,243,615.40 : 189,216,123.90 = 65,628,140.20 : x
  2. Step 2: Convert to fraction form
    126,243,615.40/189,216,123.90 = 65,628,140.20/x
  3. Step 3: Cross multiply
    126,243,615.40x = 189,216,123.90 × 65,628,140.20
  4. Step 4: Simplify right side
    126,243,615.40x = 12,417,902,307,409,772
  5. Step 5: Solve for x
    x = 12,417,902,307,409,772/126,243,615.40
  6. Step 6: Final answer
    x = 98,364,596.64

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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.