Home / 256,026,070.71-383,883,592.05-100,393,428.56

Finding the Fourth Proportional to 256,026,070.71, 383,883,592.05 and 100,393,428.56

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Solution

The fourth proportional to 256,026,070.71, 383,883,592.05 and 100,393,428.56 is: 150,529,162.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,026,070.71 : 383,883,592.05 = 100,393,428.56 : x
  2. Step 2: Convert to fraction form
    256,026,070.71/383,883,592.05 = 100,393,428.56/x
  3. Step 3: Cross multiply
    256,026,070.71x = 383,883,592.05 × 100,393,428.56
  4. Step 4: Simplify right side
    256,026,070.71x = 38,539,389,971,908,448
  5. Step 5: Solve for x
    x = 38,539,389,971,908,448/256,026,070.71
  6. Step 6: Final answer
    x = 150,529,162.38

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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.