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Finding the Fourth Proportional to 268,453,400.80, 402,381,502.80 and 147,371,749.60

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Solution

The fourth proportional to 268,453,400.80, 402,381,502.80 and 147,371,749.60 is: 220,893,704.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,453,400.80 : 402,381,502.80 = 147,371,749.60 : x
  2. Step 2: Convert to fraction form
    268,453,400.80/402,381,502.80 = 147,371,749.60/x
  3. Step 3: Cross multiply
    268,453,400.80x = 402,381,502.80 × 147,371,749.60
  4. Step 4: Simplify right side
    268,453,400.80x = 59,299,666,074,313,296
  5. Step 5: Solve for x
    x = 59,299,666,074,313,296/268,453,400.80
  6. Step 6: Final answer
    x = 220,893,704.08

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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.