Home / 660,997,691.36-991,460,656.32-200,899,988.40

Finding the Fourth Proportional to 660,997,691.36, 991,460,656.32 and 200,899,988.40

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Solution

The fourth proportional to 660,997,691.36, 991,460,656.32 and 200,899,988.40 is: 301,339,077.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,997,691.36 : 991,460,656.32 = 200,899,988.40 : x
  2. Step 2: Convert to fraction form
    660,997,691.36/991,460,656.32 = 200,899,988.40/x
  3. Step 3: Cross multiply
    660,997,691.36x = 991,460,656.32 × 200,899,988.40
  4. Step 4: Simplify right side
    660,997,691.36x = 199,184,434,356,708,992
  5. Step 5: Solve for x
    x = 199,184,434,356,708,992/660,997,691.36
  6. Step 6: Final answer
    x = 301,339,077.22

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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.