Home / 378,674,904,148.56-522,587,794,369.44-209,702,175,316.56

Finding the Fourth Proportional to 378,674,904,148.56, 522,587,794,369.44 and 209,702,175,316.56

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Solution

The fourth proportional to 378,674,904,148.56, 522,587,794,369.44 and 209,702,175,316.56 is: 289,398,098,666.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,674,904,148.56 : 522,587,794,369.44 = 209,702,175,316.56 : x
  2. Step 2: Convert to fraction form
    378,674,904,148.56/522,587,794,369.44 = 209,702,175,316.56/x
  3. Step 3: Cross multiply
    378,674,904,148.56x = 522,587,794,369.44 × 209,702,175,316.56
  4. Step 4: Simplify right side
    378,674,904,148.56x = 109,587,797,273,154,712,240,128
  5. Step 5: Solve for x
    x = 109,587,797,273,154,712,240,128/378,674,904,148.56
  6. Step 6: Final answer
    x = 289,398,098,666.08

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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.