Home / 1,680,172,302.60-2,318,638,197.80-927,485,915.40

Finding the Fourth Proportional to 1,680,172,302.60, 2,318,638,197.80 and 927,485,915.40

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Solution

The fourth proportional to 1,680,172,302.60, 2,318,638,197.80 and 927,485,915.40 is: 1,279,930,795.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,172,302.60 : 2,318,638,197.80 = 927,485,915.40 : x
  2. Step 2: Convert to fraction form
    1,680,172,302.60/2,318,638,197.80 = 927,485,915.40/x
  3. Step 3: Cross multiply
    1,680,172,302.60x = 2,318,638,197.80 × 927,485,915.40
  4. Step 4: Simplify right side
    1,680,172,302.60x = 2,150,504,271,367,939,328
  5. Step 5: Solve for x
    x = 2,150,504,271,367,939,328/1,680,172,302.60
  6. Step 6: Final answer
    x = 1,279,930,795.22

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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.