Home / 287,725,075.44-397,096,970.04-188,689,142.40

Finding the Fourth Proportional to 287,725,075.44, 397,096,970.04 and 188,689,142.40

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Solution

The fourth proportional to 287,725,075.44, 397,096,970.04 and 188,689,142.40 is: 260,414,865.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,725,075.44 : 397,096,970.04 = 188,689,142.40 : x
  2. Step 2: Convert to fraction form
    287,725,075.44/397,096,970.04 = 188,689,142.40/x
  3. Step 3: Cross multiply
    287,725,075.44x = 397,096,970.04 × 188,689,142.40
  4. Step 4: Simplify right side
    287,725,075.44x = 74,927,886,726,486,096
  5. Step 5: Solve for x
    x = 74,927,886,726,486,096/287,725,075.44
  6. Step 6: Final answer
    x = 260,414,865.17

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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.