Home / 490,752,002.10-736,128,003.15-145,758,875.70

Finding the Fourth Proportional to 490,752,002.10, 736,128,003.15 and 145,758,875.70

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Solution

The fourth proportional to 490,752,002.10, 736,128,003.15 and 145,758,875.70 is: 218,638,313.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,752,002.10 : 736,128,003.15 = 145,758,875.70 : x
  2. Step 2: Convert to fraction form
    490,752,002.10/736,128,003.15 = 145,758,875.70/x
  3. Step 3: Cross multiply
    490,752,002.10x = 736,128,003.15 × 145,758,875.70
  4. Step 4: Simplify right side
    490,752,002.10x = 107,297,190,110,430,048
  5. Step 5: Solve for x
    x = 107,297,190,110,430,048/490,752,002.10
  6. Step 6: Final answer
    x = 218,638,313.55

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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.