Home / 1,114,921,599.28-1,538,632,260.61-638,704,006.31

Finding the Fourth Proportional to 1,114,921,599.28, 1,538,632,260.61 and 638,704,006.31

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Solution

The fourth proportional to 1,114,921,599.28, 1,538,632,260.61 and 638,704,006.31 is: 881,434,703.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,921,599.28 : 1,538,632,260.61 = 638,704,006.31 : x
  2. Step 2: Convert to fraction form
    1,114,921,599.28/1,538,632,260.61 = 638,704,006.31/x
  3. Step 3: Cross multiply
    1,114,921,599.28x = 1,538,632,260.61 × 638,704,006.31
  4. Step 4: Simplify right side
    1,114,921,599.28x = 982,730,589,085,144,960
  5. Step 5: Solve for x
    x = 982,730,589,085,144,960/1,114,921,599.28
  6. Step 6: Final answer
    x = 881,434,703.32

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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.