Home / 427,087,864.89-640,500,643.63-150,674,436.86

Finding the Fourth Proportional to 427,087,864.89, 640,500,643.63 and 150,674,436.86

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Solution

The fourth proportional to 427,087,864.89, 640,500,643.63 and 150,674,436.86 is: 225,965,384.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,087,864.89 : 640,500,643.63 = 150,674,436.86 : x
  2. Step 2: Convert to fraction form
    427,087,864.89/640,500,643.63 = 150,674,436.86/x
  3. Step 3: Cross multiply
    427,087,864.89x = 640,500,643.63 × 150,674,436.86
  4. Step 4: Simplify right side
    427,087,864.89x = 96,507,073,785,775,520
  5. Step 5: Solve for x
    x = 96,507,073,785,775,520/427,087,864.89
  6. Step 6: Final answer
    x = 225,965,384.92

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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.