Home / 817,572,456-1,128,261,887.58-465,140,861.46

Finding the Fourth Proportional to 817,572,456, 1,128,261,887.58 and 465,140,861.46

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Solution

The fourth proportional to 817,572,456, 1,128,261,887.58 and 465,140,861.46 is: 641,901,158.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,572,456 : 1,128,261,887.58 = 465,140,861.46 : x
  2. Step 2: Convert to fraction form
    817,572,456/1,128,261,887.58 = 465,140,861.46/x
  3. Step 3: Cross multiply
    817,572,456x = 1,128,261,887.58 × 465,140,861.46
  4. Step 4: Simplify right side
    817,572,456x = 524,800,706,341,446,784
  5. Step 5: Solve for x
    x = 524,800,706,341,446,784/817,572,456
  6. Step 6: Final answer
    x = 641,901,158.11

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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.