Home / 374,432,528.76-561,725,396.60-128,757,256.71

Finding the Fourth Proportional to 374,432,528.76, 561,725,396.60 and 128,757,256.71

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Solution

The fourth proportional to 374,432,528.76, 561,725,396.60 and 128,757,256.71 is: 193,162,226.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,432,528.76 : 561,725,396.60 = 128,757,256.71 : x
  2. Step 2: Convert to fraction form
    374,432,528.76/561,725,396.60 = 128,757,256.71/x
  3. Step 3: Cross multiply
    374,432,528.76x = 561,725,396.60 × 128,757,256.71
  4. Step 4: Simplify right side
    374,432,528.76x = 72,326,221,089,908,976
  5. Step 5: Solve for x
    x = 72,326,221,089,908,976/374,432,528.76
  6. Step 6: Final answer
    x = 193,162,226.93

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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.