Home / 486,426,431.70-730,367,721.69-421,050,331.35

Finding the Fourth Proportional to 486,426,431.70, 730,367,721.69 and 421,050,331.35

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Solution

The fourth proportional to 486,426,431.70, 730,367,721.69 and 421,050,331.35 is: 632,205,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,426,431.70 : 730,367,721.69 = 421,050,331.35 : x
  2. Step 2: Convert to fraction form
    486,426,431.70/730,367,721.69 = 421,050,331.35/x
  3. Step 3: Cross multiply
    486,426,431.70x = 730,367,721.69 × 421,050,331.35
  4. Step 4: Simplify right side
    486,426,431.70x = 307,521,571,224,919,104
  5. Step 5: Solve for x
    x = 307,521,571,224,919,104/486,426,431.70
  6. Step 6: Final answer
    x = 632,205,717.42

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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.