Home / 867,518,501.70-1,301,269,458.15-212,472,408.90

Finding the Fourth Proportional to 867,518,501.70, 1,301,269,458.15 and 212,472,408.90

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Solution

The fourth proportional to 867,518,501.70, 1,301,269,458.15 and 212,472,408.90 is: 318,706,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,518,501.70 : 1,301,269,458.15 = 212,472,408.90 : x
  2. Step 2: Convert to fraction form
    867,518,501.70/1,301,269,458.15 = 212,472,408.90/x
  3. Step 3: Cross multiply
    867,518,501.70x = 1,301,269,458.15 × 212,472,408.90
  4. Step 4: Simplify right side
    867,518,501.70x = 276,483,856,401,128,256
  5. Step 5: Solve for x
    x = 276,483,856,401,128,256/867,518,501.70
  6. Step 6: Final answer
    x = 318,706,581.89

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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.