Home / 644,602,442.56-966,902,456.72-201,979,006.90

Finding the Fourth Proportional to 644,602,442.56, 966,902,456.72 and 201,979,006.90

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Solution

The fourth proportional to 644,602,442.56, 966,902,456.72 and 201,979,006.90 is: 302,968,132.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,602,442.56 : 966,902,456.72 = 201,979,006.90 : x
  2. Step 2: Convert to fraction form
    644,602,442.56/966,902,456.72 = 201,979,006.90/x
  3. Step 3: Cross multiply
    644,602,442.56x = 966,902,456.72 × 201,979,006.90
  4. Step 4: Simplify right side
    644,602,442.56x = 195,293,997,975,563,520
  5. Step 5: Solve for x
    x = 195,293,997,975,563,520/644,602,442.56
  6. Step 6: Final answer
    x = 302,968,132.11

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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.