Home / 490,752,003.10-736,128,004.65-145,758,876.70

Finding the Fourth Proportional to 490,752,003.10, 736,128,004.65 and 145,758,876.70

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Solution

The fourth proportional to 490,752,003.10, 736,128,004.65 and 145,758,876.70 is: 218,638,315.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,752,003.10 : 736,128,004.65 = 145,758,876.70 : x
  2. Step 2: Convert to fraction form
    490,752,003.10/736,128,004.65 = 145,758,876.70/x
  3. Step 3: Cross multiply
    490,752,003.10x = 736,128,004.65 × 145,758,876.70
  4. Step 4: Simplify right side
    490,752,003.10x = 107,297,191,065,196,368
  5. Step 5: Solve for x
    x = 107,297,191,065,196,368/490,752,003.10
  6. Step 6: Final answer
    x = 218,638,315.05

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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.