Home / 389,247,365.34-537,162,787.17-210,631,254.57

Finding the Fourth Proportional to 389,247,365.34, 537,162,787.17 and 210,631,254.57

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Solution

The fourth proportional to 389,247,365.34, 537,162,787.17 and 210,631,254.57 is: 290,671,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,247,365.34 : 537,162,787.17 = 210,631,254.57 : x
  2. Step 2: Convert to fraction form
    389,247,365.34/537,162,787.17 = 210,631,254.57/x
  3. Step 3: Cross multiply
    389,247,365.34x = 537,162,787.17 × 210,631,254.57
  4. Step 4: Simplify right side
    389,247,365.34x = 113,143,271,769,934,992
  5. Step 5: Solve for x
    x = 113,143,271,769,934,992/389,247,365.34
  6. Step 6: Final answer
    x = 290,671,901.33

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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.