Home / 946,637,422.08-1,306,410,105.60-528,959,846.40

Finding the Fourth Proportional to 946,637,422.08, 1,306,410,105.60 and 528,959,846.40

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Solution

The fourth proportional to 946,637,422.08, 1,306,410,105.60 and 528,959,846.40 is: 729,992,785.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,637,422.08 : 1,306,410,105.60 = 528,959,846.40 : x
  2. Step 2: Convert to fraction form
    946,637,422.08/1,306,410,105.60 = 528,959,846.40/x
  3. Step 3: Cross multiply
    946,637,422.08x = 1,306,410,105.60 × 528,959,846.40
  4. Step 4: Simplify right side
    946,637,422.08x = 691,038,488,793,583,744
  5. Step 5: Solve for x
    x = 691,038,488,793,583,744/946,637,422.08
  6. Step 6: Final answer
    x = 729,992,785.70

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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.