Home / 287,725,077.44-397,096,972.80-188,689,144.40

Finding the Fourth Proportional to 287,725,077.44, 397,096,972.80 and 188,689,144.40

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Solution

The fourth proportional to 287,725,077.44, 397,096,972.80 and 188,689,144.40 is: 260,414,867.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,725,077.44 : 397,096,972.80 = 188,689,144.40 : x
  2. Step 2: Convert to fraction form
    287,725,077.44/397,096,972.80 = 188,689,144.40/x
  3. Step 3: Cross multiply
    287,725,077.44x = 397,096,972.80 × 188,689,144.40
  4. Step 4: Simplify right side
    287,725,077.44x = 74,927,888,041,462,080
  5. Step 5: Solve for x
    x = 74,927,888,041,462,080/287,725,077.44
  6. Step 6: Final answer
    x = 260,414,867.93

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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.