Home / 661,189,502.09-991,927,742.21-201,115,713.98

Finding the Fourth Proportional to 661,189,502.09, 991,927,742.21 and 201,115,713.98

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Solution

The fourth proportional to 661,189,502.09, 991,927,742.21 and 201,115,713.98 is: 301,717,216.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,189,502.09 : 991,927,742.21 = 201,115,713.98 : x
  2. Step 2: Convert to fraction form
    661,189,502.09/991,927,742.21 = 201,115,713.98/x
  3. Step 3: Cross multiply
    661,189,502.09x = 991,927,742.21 × 201,115,713.98
  4. Step 4: Simplify right side
    661,189,502.09x = 199,492,256,091,133,536
  5. Step 5: Solve for x
    x = 199,492,256,091,133,536/661,189,502.09
  6. Step 6: Final answer
    x = 301,717,216.41

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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.