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Finding the Fourth Proportional to 898,604,857.80, 1,347,907,286.70 and 438,837,971.40

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Solution

The fourth proportional to 898,604,857.80, 1,347,907,286.70 and 438,837,971.40 is: 658,256,957.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,604,857.80 : 1,347,907,286.70 = 438,837,971.40 : x
  2. Step 2: Convert to fraction form
    898,604,857.80/1,347,907,286.70 = 438,837,971.40/x
  3. Step 3: Cross multiply
    898,604,857.80x = 1,347,907,286.70 × 438,837,971.40
  4. Step 4: Simplify right side
    898,604,857.80x = 591,512,899,330,706,176
  5. Step 5: Solve for x
    x = 591,512,899,330,706,176/898,604,857.80
  6. Step 6: Final answer
    x = 658,256,957.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.