Home / 644,113,090.80-966,169,636.20-159,438,898.80

Finding the Fourth Proportional to 644,113,090.80, 966,169,636.20 and 159,438,898.80

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Solution

The fourth proportional to 644,113,090.80, 966,169,636.20 and 159,438,898.80 is: 239,158,348.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,113,090.80 : 966,169,636.20 = 159,438,898.80 : x
  2. Step 2: Convert to fraction form
    644,113,090.80/966,169,636.20 = 159,438,898.80/x
  3. Step 3: Cross multiply
    644,113,090.80x = 966,169,636.20 × 159,438,898.80
  4. Step 4: Simplify right side
    644,113,090.80x = 154,045,022,849,724,640
  5. Step 5: Solve for x
    x = 154,045,022,849,724,640/644,113,090.80
  6. Step 6: Final answer
    x = 239,158,348.20

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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.