Home / 15,709,890,145.46-21,679,642,674.36-8,573,303,974.55

Finding the Fourth Proportional to 15,709,890,145.46, 21,679,642,674.36 and 8,573,303,974.55

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Solution

The fourth proportional to 15,709,890,145.46, 21,679,642,674.36 and 8,573,303,974.55 is: 11,831,156,359.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,709,890,145.46 : 21,679,642,674.36 = 8,573,303,974.55 : x
  2. Step 2: Convert to fraction form
    15,709,890,145.46/21,679,642,674.36 = 8,573,303,974.55/x
  3. Step 3: Cross multiply
    15,709,890,145.46x = 21,679,642,674.36 × 8,573,303,974.55
  4. Step 4: Simplify right side
    15,709,890,145.46x = 185,866,166,706,805,997,568
  5. Step 5: Solve for x
    x = 185,866,166,706,805,997,568/15,709,890,145.46
  6. Step 6: Final answer
    x = 11,831,156,359.84

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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.