Home / 290,440,393.68-435,789,243.32-152,233,155.17

Finding the Fourth Proportional to 290,440,393.68, 435,789,243.32 and 152,233,155.17

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Solution

The fourth proportional to 290,440,393.68, 435,789,243.32 and 152,233,155.17 is: 228,417,165.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,440,393.68 : 435,789,243.32 = 152,233,155.17 : x
  2. Step 2: Convert to fraction form
    290,440,393.68/435,789,243.32 = 152,233,155.17/x
  3. Step 3: Cross multiply
    290,440,393.68x = 435,789,243.32 × 152,233,155.17
  4. Step 4: Simplify right side
    290,440,393.68x = 66,341,571,496,810,328
  5. Step 5: Solve for x
    x = 66,341,571,496,810,328/290,440,393.68
  6. Step 6: Final answer
    x = 228,417,165.59

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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.