Home / 287,725,073.94-397,096,967.97-188,689,140.90

Finding the Fourth Proportional to 287,725,073.94, 397,096,967.97 and 188,689,140.90

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Solution

The fourth proportional to 287,725,073.94, 397,096,967.97 and 188,689,140.90 is: 260,414,863.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,725,073.94 : 397,096,967.97 = 188,689,140.90 : x
  2. Step 2: Convert to fraction form
    287,725,073.94/397,096,967.97 = 188,689,140.90/x
  3. Step 3: Cross multiply
    287,725,073.94x = 397,096,967.97 × 188,689,140.90
  4. Step 4: Simplify right side
    287,725,073.94x = 74,927,885,740,254,128
  5. Step 5: Solve for x
    x = 74,927,885,740,254,128/287,725,073.94
  6. Step 6: Final answer
    x = 260,414,863.10

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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.