Home / 646,347,004.83-969,656,690.07-209,613,636.15

Finding the Fourth Proportional to 646,347,004.83, 969,656,690.07 and 209,613,636.15

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Solution

The fourth proportional to 646,347,004.83, 969,656,690.07 and 209,613,636.15 is: 314,464,619.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,347,004.83 : 969,656,690.07 = 209,613,636.15 : x
  2. Step 2: Convert to fraction form
    646,347,004.83/969,656,690.07 = 209,613,636.15/x
  3. Step 3: Cross multiply
    646,347,004.83x = 969,656,690.07 × 209,613,636.15
  4. Step 4: Simplify right side
    646,347,004.83x = 203,253,264,622,746,304
  5. Step 5: Solve for x
    x = 203,253,264,622,746,304/646,347,004.83
  6. Step 6: Final answer
    x = 314,464,619.01

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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.