Home / 917,685,911.20-1,376,527,615.92-426,130,385.44

Finding the Fourth Proportional to 917,685,911.20, 1,376,527,615.92 and 426,130,385.44

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Solution

The fourth proportional to 917,685,911.20, 1,376,527,615.92 and 426,130,385.44 is: 639,194,997.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,685,911.20 : 1,376,527,615.92 = 426,130,385.44 : x
  2. Step 2: Convert to fraction form
    917,685,911.20/1,376,527,615.92 = 426,130,385.44/x
  3. Step 3: Cross multiply
    917,685,911.20x = 1,376,527,615.92 × 426,130,385.44
  4. Step 4: Simplify right side
    917,685,911.20x = 586,580,243,540,793,856
  5. Step 5: Solve for x
    x = 586,580,243,540,793,856/917,685,911.20
  6. Step 6: Final answer
    x = 639,194,997.31

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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.