Home / 728,941,571.02-1,005,938,718.07-411,468,641.13

Finding the Fourth Proportional to 728,941,571.02, 1,005,938,718.07 and 411,468,641.13

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Solution

The fourth proportional to 728,941,571.02, 1,005,938,718.07 and 411,468,641.13 is: 567,826,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,941,571.02 : 1,005,938,718.07 = 411,468,641.13 : x
  2. Step 2: Convert to fraction form
    728,941,571.02/1,005,938,718.07 = 411,468,641.13/x
  3. Step 3: Cross multiply
    728,941,571.02x = 1,005,938,718.07 × 411,468,641.13
  4. Step 4: Simplify right side
    728,941,571.02x = 413,912,237,383,587,328
  5. Step 5: Solve for x
    x = 413,912,237,383,587,328/728,941,571.02
  6. Step 6: Final answer
    x = 567,826,357.89

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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.