Home / 867,503,806.70-1,301,247,415.65-212,457,713.90

Finding the Fourth Proportional to 867,503,806.70, 1,301,247,415.65 and 212,457,713.90

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Solution

The fourth proportional to 867,503,806.70, 1,301,247,415.65 and 212,457,713.90 is: 318,684,539.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,503,806.70 : 1,301,247,415.65 = 212,457,713.90 : x
  2. Step 2: Convert to fraction form
    867,503,806.70/1,301,247,415.65 = 212,457,713.90/x
  3. Step 3: Cross multiply
    867,503,806.70x = 1,301,247,415.65 × 212,457,713.90
  4. Step 4: Simplify right side
    867,503,806.70x = 276,460,051,147,282,112
  5. Step 5: Solve for x
    x = 276,460,051,147,282,112/867,503,806.70
  6. Step 6: Final answer
    x = 318,684,539.49

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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.