Home / 1,171,868,689.28-1,617,180,392.61-636,020,362.47

Finding the Fourth Proportional to 1,171,868,689.28, 1,617,180,392.61 and 636,020,362.47

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Solution

The fourth proportional to 1,171,868,689.28, 1,617,180,392.61 and 636,020,362.47 is: 877,708,969.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,868,689.28 : 1,617,180,392.61 = 636,020,362.47 : x
  2. Step 2: Convert to fraction form
    1,171,868,689.28/1,617,180,392.61 = 636,020,362.47/x
  3. Step 3: Cross multiply
    1,171,868,689.28x = 1,617,180,392.61 × 636,020,362.47
  4. Step 4: Simplify right side
    1,171,868,689.28x = 1,028,559,659,487,189,120
  5. Step 5: Solve for x
    x = 1,028,559,659,487,189,120/1,171,868,689.28
  6. Step 6: Final answer
    x = 877,708,969.36

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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.