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Finding the Fourth Proportional to 533,542,480, 736,288,622.40 and 289,355,344

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Solution

The fourth proportional to 533,542,480, 736,288,622.40 and 289,355,344 is: 399,310,374.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,542,480 : 736,288,622.40 = 289,355,344 : x
  2. Step 2: Convert to fraction form
    533,542,480/736,288,622.40 = 289,355,344/x
  3. Step 3: Cross multiply
    533,542,480x = 736,288,622.40 × 289,355,344
  4. Step 4: Simplify right side
    533,542,480x = 213,049,047,617,838,112
  5. Step 5: Solve for x
    x = 213,049,047,617,838,112/533,542,480
  6. Step 6: Final answer
    x = 399,310,374.72

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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.