Home / 660,997,931.76-991,461,016.80-200,900,228.94

Finding the Fourth Proportional to 660,997,931.76, 991,461,016.80 and 200,900,228.94

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Solution

The fourth proportional to 660,997,931.76, 991,461,016.80 and 200,900,228.94 is: 301,339,437.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,997,931.76 : 991,461,016.80 = 200,900,228.94 : x
  2. Step 2: Convert to fraction form
    660,997,931.76/991,461,016.80 = 200,900,228.94/x
  3. Step 3: Cross multiply
    660,997,931.76x = 991,461,016.80 × 200,900,228.94
  4. Step 4: Simplify right side
    660,997,931.76x = 199,184,745,260,205,184
  5. Step 5: Solve for x
    x = 199,184,745,260,205,184/660,997,931.76
  6. Step 6: Final answer
    x = 301,339,437.98

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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.