Home / 154,085,622.45-212,638,140.66-84,471,495.18

Finding the Fourth Proportional to 154,085,622.45, 212,638,140.66 and 84,471,495.18

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Solution

The fourth proportional to 154,085,622.45, 212,638,140.66 and 84,471,495.18 is: 116,570,653.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,085,622.45 : 212,638,140.66 = 84,471,495.18 : x
  2. Step 2: Convert to fraction form
    154,085,622.45/212,638,140.66 = 84,471,495.18/x
  3. Step 3: Cross multiply
    154,085,622.45x = 212,638,140.66 × 84,471,495.18
  4. Step 4: Simplify right side
    154,085,622.45x = 17,961,861,673,845,354
  5. Step 5: Solve for x
    x = 17,961,861,673,845,354/154,085,622.45
  6. Step 6: Final answer
    x = 116,570,653.30

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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.