Home / 1,387,170,199.20-1,912,443,048.36-1,102,007,880.66

Finding the Fourth Proportional to 1,387,170,199.20, 1,912,443,048.36 and 1,102,007,880.66

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Solution

The fourth proportional to 1,387,170,199.20, 1,912,443,048.36 and 1,102,007,880.66 is: 1,519,299,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,170,199.20 : 1,912,443,048.36 = 1,102,007,880.66 : x
  2. Step 2: Convert to fraction form
    1,387,170,199.20/1,912,443,048.36 = 1,102,007,880.66/x
  3. Step 3: Cross multiply
    1,387,170,199.20x = 1,912,443,048.36 × 1,102,007,880.66
  4. Step 4: Simplify right side
    1,387,170,199.20x = 2,107,527,310,606,153,472
  5. Step 5: Solve for x
    x = 2,107,527,310,606,153,472/1,387,170,199.20
  6. Step 6: Final answer
    x = 1,519,299,731.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.