Home / 1,309,482,218.54-1,806,815,700.78-752,457,648.80

Finding the Fourth Proportional to 1,309,482,218.54, 1,806,815,700.78 and 752,457,648.80

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Solution

The fourth proportional to 1,309,482,218.54, 1,806,815,700.78 and 752,457,648.80 is: 1,038,236,544.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,482,218.54 : 1,806,815,700.78 = 752,457,648.80 : x
  2. Step 2: Convert to fraction form
    1,309,482,218.54/1,806,815,700.78 = 752,457,648.80/x
  3. Step 3: Cross multiply
    1,309,482,218.54x = 1,806,815,700.78 × 752,457,648.80
  4. Step 4: Simplify right side
    1,309,482,218.54x = 1,359,552,294,025,500,928
  5. Step 5: Solve for x
    x = 1,359,552,294,025,500,928/1,309,482,218.54
  6. Step 6: Final answer
    x = 1,038,236,544.78

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Double scale
Find fourth proportional to 1,309,482,219.54, 1,806,815,702.16 and 752,457,649.80
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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.