Home / 126,243,614.40-189,216,122.40-65,628,139.20

Finding the Fourth Proportional to 126,243,614.40, 189,216,122.40 and 65,628,139.20

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Solution

The fourth proportional to 126,243,614.40, 189,216,122.40 and 65,628,139.20 is: 98,364,595.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,243,614.40 : 189,216,122.40 = 65,628,139.20 : x
  2. Step 2: Convert to fraction form
    126,243,614.40/189,216,122.40 = 65,628,139.20/x
  3. Step 3: Cross multiply
    126,243,614.40x = 189,216,122.40 × 65,628,139.20
  4. Step 4: Simplify right side
    126,243,614.40x = 12,417,902,019,751,440
  5. Step 5: Solve for x
    x = 12,417,902,019,751,440/126,243,614.40
  6. Step 6: Final answer
    x = 98,364,595.14

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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.