Home / 661,189,410.93-991,927,605.48-201,115,622.82

Finding the Fourth Proportional to 661,189,410.93, 991,927,605.48 and 201,115,622.82

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Solution

The fourth proportional to 661,189,410.93, 991,927,605.48 and 201,115,622.82 is: 301,717,079.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,189,410.93 : 991,927,605.48 = 201,115,622.82 : x
  2. Step 2: Convert to fraction form
    661,189,410.93/991,927,605.48 = 201,115,622.82/x
  3. Step 3: Cross multiply
    661,189,410.93x = 991,927,605.48 × 201,115,622.82
  4. Step 4: Simplify right side
    661,189,410.93x = 199,492,138,168,461,440
  5. Step 5: Solve for x
    x = 199,492,138,168,461,440/661,189,410.93
  6. Step 6: Final answer
    x = 301,717,079.66

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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.