Home / 1,303,345,851.40-1,957,286,258.70-691,125,819.40

Finding the Fourth Proportional to 1,303,345,851.40, 1,957,286,258.70 and 691,125,819.40

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Solution

The fourth proportional to 1,303,345,851.40, 1,957,286,258.70 and 691,125,819.40 is: 1,037,891,107.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,345,851.40 : 1,957,286,258.70 = 691,125,819.40 : x
  2. Step 2: Convert to fraction form
    1,303,345,851.40/1,957,286,258.70 = 691,125,819.40/x
  3. Step 3: Cross multiply
    1,303,345,851.40x = 1,957,286,258.70 × 691,125,819.40
  4. Step 4: Simplify right side
    1,303,345,851.40x = 1,352,731,069,344,397,824
  5. Step 5: Solve for x
    x = 1,352,731,069,344,397,824/1,303,345,851.40
  6. Step 6: Final answer
    x = 1,037,891,107.64

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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.