Home / 535,257,438.66-738,643,644.27-309,196,609.02

Finding the Fourth Proportional to 535,257,438.66, 738,643,644.27 and 309,196,609.02

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Solution

The fourth proportional to 535,257,438.66, 738,643,644.27 and 309,196,609.02 is: 426,684,607.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,257,438.66 : 738,643,644.27 = 309,196,609.02 : x
  2. Step 2: Convert to fraction form
    535,257,438.66/738,643,644.27 = 309,196,609.02/x
  3. Step 3: Cross multiply
    535,257,438.66x = 738,643,644.27 × 309,196,609.02
  4. Step 4: Simplify right side
    535,257,438.66x = 228,386,110,082,459,136
  5. Step 5: Solve for x
    x = 228,386,110,082,459,136/535,257,438.66
  6. Step 6: Final answer
    x = 426,684,607.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.