Home / 645,943,159.10-968,867,870.70-252,395,986.44

Finding the Fourth Proportional to 645,943,159.10, 968,867,870.70 and 252,395,986.44

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Solution

The fourth proportional to 645,943,159.10, 968,867,870.70 and 252,395,986.44 is: 378,575,666.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,943,159.10 : 968,867,870.70 = 252,395,986.44 : x
  2. Step 2: Convert to fraction form
    645,943,159.10/968,867,870.70 = 252,395,986.44/x
  3. Step 3: Cross multiply
    645,943,159.10x = 968,867,870.70 × 252,395,986.44
  4. Step 4: Simplify right side
    645,943,159.10x = 244,538,361,955,348,896
  5. Step 5: Solve for x
    x = 244,538,361,955,348,896/645,943,159.10
  6. Step 6: Final answer
    x = 378,575,666.47

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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.