Home / 388,633,377.84-583,052,313.78-139,663,787.46

Finding the Fourth Proportional to 388,633,377.84, 583,052,313.78 and 139,663,787.46

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Solution

The fourth proportional to 388,633,377.84, 583,052,313.78 and 139,663,787.46 is: 209,532,425.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,633,377.84 : 583,052,313.78 = 139,663,787.46 : x
  2. Step 2: Convert to fraction form
    388,633,377.84/583,052,313.78 = 139,663,787.46/x
  3. Step 3: Cross multiply
    388,633,377.84x = 583,052,313.78 × 139,663,787.46
  4. Step 4: Simplify right side
    388,633,377.84x = 81,431,294,429,831,152
  5. Step 5: Solve for x
    x = 81,431,294,429,831,152/388,633,377.84
  6. Step 6: Final answer
    x = 209,532,425.86

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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.