Home / 728,954,037.47-1,005,585,970.51-442,769,407.88

Finding the Fourth Proportional to 728,954,037.47, 1,005,585,970.51 and 442,769,407.88

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Solution

The fourth proportional to 728,954,037.47, 1,005,585,970.51 and 442,769,407.88 is: 610,796,678.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,954,037.47 : 1,005,585,970.51 = 442,769,407.88 : x
  2. Step 2: Convert to fraction form
    728,954,037.47/1,005,585,970.51 = 442,769,407.88/x
  3. Step 3: Cross multiply
    728,954,037.47x = 1,005,585,970.51 × 442,769,407.88
  4. Step 4: Simplify right side
    728,954,037.47x = 445,242,704,736,554,880
  5. Step 5: Solve for x
    x = 445,242,704,736,554,880/728,954,037.47
  6. Step 6: Final answer
    x = 610,796,678.32

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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.