Home / 861,558,202.58-1,291,356,986.54-524,291,889.06

Finding the Fourth Proportional to 861,558,202.58, 1,291,356,986.54 and 524,291,889.06

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Solution

The fourth proportional to 861,558,202.58, 1,291,356,986.54 and 524,291,889.06 is: 785,841,272.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,558,202.58 : 1,291,356,986.54 = 524,291,889.06 : x
  2. Step 2: Convert to fraction form
    861,558,202.58/1,291,356,986.54 = 524,291,889.06/x
  3. Step 3: Cross multiply
    861,558,202.58x = 1,291,356,986.54 × 524,291,889.06
  4. Step 4: Simplify right side
    861,558,202.58x = 677,047,993,921,264,128
  5. Step 5: Solve for x
    x = 677,047,993,921,264,128/861,558,202.58
  6. Step 6: Final answer
    x = 785,841,272.12

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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.