Home / 374,432,508.51-561,725,366.22-128,757,236.46

Finding the Fourth Proportional to 374,432,508.51, 561,725,366.22 and 128,757,236.46

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Solution

The fourth proportional to 374,432,508.51, 561,725,366.22 and 128,757,236.46 is: 193,162,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,432,508.51 : 561,725,366.22 = 128,757,236.46 : x
  2. Step 2: Convert to fraction form
    374,432,508.51/561,725,366.22 = 128,757,236.46/x
  3. Step 3: Cross multiply
    374,432,508.51x = 561,725,366.22 × 128,757,236.46
  4. Step 4: Simplify right side
    374,432,508.51x = 72,326,205,803,968,640
  5. Step 5: Solve for x
    x = 72,326,205,803,968,640/374,432,508.51
  6. Step 6: Final answer
    x = 193,162,196.55

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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.