Home / 387,989,726.40-582,208,538.40-145,677,124.80

Finding the Fourth Proportional to 387,989,726.40, 582,208,538.40 and 145,677,124.80

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Solution

The fourth proportional to 387,989,726.40, 582,208,538.40 and 145,677,124.80 is: 218,599,772.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,989,726.40 : 582,208,538.40 = 145,677,124.80 : x
  2. Step 2: Convert to fraction form
    387,989,726.40/582,208,538.40 = 145,677,124.80/x
  3. Step 3: Cross multiply
    387,989,726.40x = 582,208,538.40 × 145,677,124.80
  4. Step 4: Simplify right side
    387,989,726.40x = 84,814,465,908,122,400
  5. Step 5: Solve for x
    x = 84,814,465,908,122,400/387,989,726.40
  6. Step 6: Final answer
    x = 218,599,772.46

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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.