Home / 639,586,868.51-882,613,617.78-357,331,429.46

Finding the Fourth Proportional to 639,586,868.51, 882,613,617.78 and 357,331,429.46

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Solution

The fourth proportional to 639,586,868.51, 882,613,617.78 and 357,331,429.46 is: 493,108,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,586,868.51 : 882,613,617.78 = 357,331,429.46 : x
  2. Step 2: Convert to fraction form
    639,586,868.51/882,613,617.78 = 357,331,429.46/x
  3. Step 3: Cross multiply
    639,586,868.51x = 882,613,617.78 × 357,331,429.46
  4. Step 4: Simplify right side
    639,586,868.51x = 315,385,585,702,189,440
  5. Step 5: Solve for x
    x = 315,385,585,702,189,440/639,586,868.51
  6. Step 6: Final answer
    x = 493,108,287.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.