Home / 472,886,749.20-709,397,820.76-145,389,761.30

Finding the Fourth Proportional to 472,886,749.20, 709,397,820.76 and 145,389,761.30

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Solution

The fourth proportional to 472,886,749.20, 709,397,820.76 and 145,389,761.30 is: 218,105,455.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,886,749.20 : 709,397,820.76 = 145,389,761.30 : x
  2. Step 2: Convert to fraction form
    472,886,749.20/709,397,820.76 = 145,389,761.30/x
  3. Step 3: Cross multiply
    472,886,749.20x = 709,397,820.76 × 145,389,761.30
  4. Step 4: Simplify right side
    472,886,749.20x = 103,139,179,827,036,592
  5. Step 5: Solve for x
    x = 103,139,179,827,036,592/472,886,749.20
  6. Step 6: Final answer
    x = 218,105,455.48

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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.