Home / 644,113,087.80-966,169,631.70-159,438,895.80

Finding the Fourth Proportional to 644,113,087.80, 966,169,631.70 and 159,438,895.80

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Solution

The fourth proportional to 644,113,087.80, 966,169,631.70 and 159,438,895.80 is: 239,158,343.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,113,087.80 : 966,169,631.70 = 159,438,895.80 : x
  2. Step 2: Convert to fraction form
    644,113,087.80/966,169,631.70 = 159,438,895.80/x
  3. Step 3: Cross multiply
    644,113,087.80x = 966,169,631.70 × 159,438,895.80
  4. Step 4: Simplify right side
    644,113,087.80x = 154,045,019,233,740,704
  5. Step 5: Solve for x
    x = 154,045,019,233,740,704/644,113,087.80
  6. Step 6: Final answer
    x = 239,158,343.70

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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.