Home / 415,838,491.20-623,085,890.40-262,209,614.40

Finding the Fourth Proportional to 415,838,491.20, 623,085,890.40 and 262,209,614.40

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Solution

The fourth proportional to 415,838,491.20, 623,085,890.40 and 262,209,614.40 is: 392,890,784.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,838,491.20 : 623,085,890.40 = 262,209,614.40 : x
  2. Step 2: Convert to fraction form
    415,838,491.20/623,085,890.40 = 262,209,614.40/x
  3. Step 3: Cross multiply
    415,838,491.20x = 623,085,890.40 × 262,209,614.40
  4. Step 4: Simplify right side
    415,838,491.20x = 163,379,111,059,864,672
  5. Step 5: Solve for x
    x = 163,379,111,059,864,672/415,838,491.20
  6. Step 6: Final answer
    x = 392,890,784.56

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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.