Home / 841,640,940.55-1,161,500,367.72-470,362,960.99

Finding the Fourth Proportional to 841,640,940.55, 1,161,500,367.72 and 470,362,960.99

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Solution

The fourth proportional to 841,640,940.55, 1,161,500,367.72 and 470,362,960.99 is: 649,120,932.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,640,940.55 : 1,161,500,367.72 = 470,362,960.99 : x
  2. Step 2: Convert to fraction form
    841,640,940.55/1,161,500,367.72 = 470,362,960.99/x
  3. Step 3: Cross multiply
    841,640,940.55x = 1,161,500,367.72 × 470,362,960.99
  4. Step 4: Simplify right side
    841,640,940.55x = 546,326,752,151,753,024
  5. Step 5: Solve for x
    x = 546,326,752,151,753,024/841,640,940.55
  6. Step 6: Final answer
    x = 649,120,932.49

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1.5x scale

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.