Home / 30,906,681.70-42,651,385.50-19,310,969.56

Finding the Fourth Proportional to 30,906,681.70, 42,651,385.50 and 19,310,969.56

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Solution

The fourth proportional to 30,906,681.70, 42,651,385.50 and 19,310,969.56 is: 26,649,240.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,906,681.70 : 42,651,385.50 = 19,310,969.56 : x
  2. Step 2: Convert to fraction form
    30,906,681.70/42,651,385.50 = 19,310,969.56/x
  3. Step 3: Cross multiply
    30,906,681.70x = 42,651,385.50 × 19,310,969.56
  4. Step 4: Simplify right side
    30,906,681.70x = 823,639,607,082,325.38
  5. Step 5: Solve for x
    x = 823,639,607,082,325.38/30,906,681.70
  6. Step 6: Final answer
    x = 26,649,240.93

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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.