Home / 486,426,435.45-730,367,727.29-421,050,335.07

Finding the Fourth Proportional to 486,426,435.45, 730,367,727.29 and 421,050,335.07

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Solution

The fourth proportional to 486,426,435.45, 730,367,727.29 and 421,050,335.07 is: 632,205,722.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,426,435.45 : 730,367,727.29 = 421,050,335.07 : x
  2. Step 2: Convert to fraction form
    486,426,435.45/730,367,727.29 = 421,050,335.07/x
  3. Step 3: Cross multiply
    486,426,435.45x = 730,367,727.29 × 421,050,335.07
  4. Step 4: Simplify right side
    486,426,435.45x = 307,521,576,297,663,616
  5. Step 5: Solve for x
    x = 307,521,576,297,663,616/486,426,435.45
  6. Step 6: Final answer
    x = 632,205,722.97

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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.