Home / 426,480,612.36-639,720,918.30-103,364,484.36

Finding the Fourth Proportional to 426,480,612.36, 639,720,918.30 and 103,364,484.36

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Solution

The fourth proportional to 426,480,612.36, 639,720,918.30 and 103,364,484.36 is: 155,046,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,480,612.36 : 639,720,918.30 = 103,364,484.36 : x
  2. Step 2: Convert to fraction form
    426,480,612.36/639,720,918.30 = 103,364,484.36/x
  3. Step 3: Cross multiply
    426,480,612.36x = 639,720,918.30 × 103,364,484.36
  4. Step 4: Simplify right side
    426,480,612.36x = 66,124,422,854,385,184
  5. Step 5: Solve for x
    x = 66,124,422,854,385,184/426,480,612.36
  6. Step 6: Final answer
    x = 155,046,726.48

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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.