Home / 612,362,004.10-918,543,006.15-203,418,154.60

Finding the Fourth Proportional to 612,362,004.10, 918,543,006.15 and 203,418,154.60

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Solution

The fourth proportional to 612,362,004.10, 918,543,006.15 and 203,418,154.60 is: 305,127,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,362,004.10 : 918,543,006.15 = 203,418,154.60 : x
  2. Step 2: Convert to fraction form
    612,362,004.10/918,543,006.15 = 203,418,154.60/x
  3. Step 3: Cross multiply
    612,362,004.10x = 918,543,006.15 × 203,418,154.60
  4. Step 4: Simplify right side
    612,362,004.10x = 186,848,323,231,769,440
  5. Step 5: Solve for x
    x = 186,848,323,231,769,440/612,362,004.10
  6. Step 6: Final answer
    x = 305,127,231.90

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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.