Home / 56,917,896.84-78,546,681-30,812,395.30

Finding the Fourth Proportional to 56,917,896.84, 78,546,681 and 30,812,395.30

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Solution

The fourth proportional to 56,917,896.84, 78,546,681 and 30,812,395.30 is: 42,521,096.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,917,896.84 : 78,546,681 = 30,812,395.30 : x
  2. Step 2: Convert to fraction form
    56,917,896.84/78,546,681 = 30,812,395.30/x
  3. Step 3: Cross multiply
    56,917,896.84x = 78,546,681 × 30,812,395.30
  4. Step 4: Simplify right side
    56,917,896.84x = 2,420,211,384,474,999.50
  5. Step 5: Solve for x
    x = 2,420,211,384,474,999.50/56,917,896.84
  6. Step 6: Final answer
    x = 42,521,096.51

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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.