Home / 579,264,917.40-869,905,145.70-307,167,125.40

Finding the Fourth Proportional to 579,264,917.40, 869,905,145.70 and 307,167,125.40

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Solution

The fourth proportional to 579,264,917.40, 869,905,145.70 and 307,167,125.40 is: 461,285,078.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,264,917.40 : 869,905,145.70 = 307,167,125.40 : x
  2. Step 2: Convert to fraction form
    579,264,917.40/869,905,145.70 = 307,167,125.40/x
  3. Step 3: Cross multiply
    579,264,917.40x = 869,905,145.70 × 307,167,125.40
  4. Step 4: Simplify right side
    579,264,917.40x = 267,206,262,975,337,152
  5. Step 5: Solve for x
    x = 267,206,262,975,337,152/579,264,917.40
  6. Step 6: Final answer
    x = 461,285,078.64

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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.