Home / 1,189,243,921.20-1,780,338,688.20-883,889,732.40

Finding the Fourth Proportional to 1,189,243,921.20, 1,780,338,688.20 and 883,889,732.40

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Solution

The fourth proportional to 1,189,243,921.20, 1,780,338,688.20 and 883,889,732.40 is: 1,323,213,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,243,921.20 : 1,780,338,688.20 = 883,889,732.40 : x
  2. Step 2: Convert to fraction form
    1,189,243,921.20/1,780,338,688.20 = 883,889,732.40/x
  3. Step 3: Cross multiply
    1,189,243,921.20x = 1,780,338,688.20 × 883,889,732.40
  4. Step 4: Simplify right side
    1,189,243,921.20x = 1,573,623,086,694,465,024
  5. Step 5: Solve for x
    x = 1,573,623,086,694,465,024/1,189,243,921.20
  6. Step 6: Final answer
    x = 1,323,213,058.85

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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.