Home / 146,771,440.40-220,201,397.40-78,646,768.40

Finding the Fourth Proportional to 146,771,440.40, 220,201,397.40 and 78,646,768.40

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Solution

The fourth proportional to 146,771,440.40, 220,201,397.40 and 78,646,768.40 is: 117,993,856.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,771,440.40 : 220,201,397.40 = 78,646,768.40 : x
  2. Step 2: Convert to fraction form
    146,771,440.40/220,201,397.40 = 78,646,768.40/x
  3. Step 3: Cross multiply
    146,771,440.40x = 220,201,397.40 × 78,646,768.40
  4. Step 4: Simplify right side
    146,771,440.40x = 17,318,128,302,674,164
  5. Step 5: Solve for x
    x = 17,318,128,302,674,164/146,771,440.40
  6. Step 6: Final answer
    x = 117,993,856.68

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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.