Home / 1,627,128,125.20-2,440,692,187.80-851,011,688.80

Finding the Fourth Proportional to 1,627,128,125.20, 2,440,692,187.80 and 851,011,688.80

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Solution

The fourth proportional to 1,627,128,125.20, 2,440,692,187.80 and 851,011,688.80 is: 1,276,517,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627,128,125.20 : 2,440,692,187.80 = 851,011,688.80 : x
  2. Step 2: Convert to fraction form
    1,627,128,125.20/2,440,692,187.80 = 851,011,688.80/x
  3. Step 3: Cross multiply
    1,627,128,125.20x = 2,440,692,187.80 × 851,011,688.80
  4. Step 4: Simplify right side
    1,627,128,125.20x = 2,077,057,580,580,644,864
  5. Step 5: Solve for x
    x = 2,077,057,580,580,644,864/1,627,128,125.20
  6. Step 6: Final answer
    x = 1,276,517,533.20

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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.