Home / 389,247,368.34-537,162,791.34-210,631,257.60

Finding the Fourth Proportional to 389,247,368.34, 537,162,791.34 and 210,631,257.60

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Solution

The fourth proportional to 389,247,368.34, 537,162,791.34 and 210,631,257.60 is: 290,671,905.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,247,368.34 : 537,162,791.34 = 210,631,257.60 : x
  2. Step 2: Convert to fraction form
    389,247,368.34/537,162,791.34 = 210,631,257.60/x
  3. Step 3: Cross multiply
    389,247,368.34x = 537,162,791.34 × 210,631,257.60
  4. Step 4: Simplify right side
    389,247,368.34x = 113,143,274,275,870,592
  5. Step 5: Solve for x
    x = 113,143,274,275,870,592/389,247,368.34
  6. Step 6: Final answer
    x = 290,671,905.52

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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.