Home / 867,503,811.20-1,301,247,422.40-212,457,718.40

Finding the Fourth Proportional to 867,503,811.20, 1,301,247,422.40 and 212,457,718.40

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Solution

The fourth proportional to 867,503,811.20, 1,301,247,422.40 and 212,457,718.40 is: 318,684,546.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,503,811.20 : 1,301,247,422.40 = 212,457,718.40 : x
  2. Step 2: Convert to fraction form
    867,503,811.20/1,301,247,422.40 = 212,457,718.40/x
  3. Step 3: Cross multiply
    867,503,811.20x = 1,301,247,422.40 × 212,457,718.40
  4. Step 4: Simplify right side
    867,503,811.20x = 276,460,058,436,985,088
  5. Step 5: Solve for x
    x = 276,460,058,436,985,088/867,503,811.20
  6. Step 6: Final answer
    x = 318,684,546.24

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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.