Home / 387,168,243.78-534,292,253.29-210,956,239.14

Finding the Fourth Proportional to 387,168,243.78, 534,292,253.29 and 210,956,239.14

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Solution

The fourth proportional to 387,168,243.78, 534,292,253.29 and 210,956,239.14 is: 291,119,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,168,243.78 : 534,292,253.29 = 210,956,239.14 : x
  2. Step 2: Convert to fraction form
    387,168,243.78/534,292,253.29 = 210,956,239.14/x
  3. Step 3: Cross multiply
    387,168,243.78x = 534,292,253.29 × 210,956,239.14
  4. Step 4: Simplify right side
    387,168,243.78x = 112,712,284,355,694,688
  5. Step 5: Solve for x
    x = 112,712,284,355,694,688/387,168,243.78
  6. Step 6: Final answer
    x = 291,119,651.90

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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.