Home / 1,259,775,919.80-1,889,947,314.90-741,939,809.40

Finding the Fourth Proportional to 1,259,775,919.80, 1,889,947,314.90 and 741,939,809.40

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Solution

The fourth proportional to 1,259,775,919.80, 1,889,947,314.90 and 741,939,809.40 is: 1,113,076,642.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,775,919.80 : 1,889,947,314.90 = 741,939,809.40 : x
  2. Step 2: Convert to fraction form
    1,259,775,919.80/1,889,947,314.90 = 741,939,809.40/x
  3. Step 3: Cross multiply
    1,259,775,919.80x = 1,889,947,314.90 × 741,939,809.40
  4. Step 4: Simplify right side
    1,259,775,919.80x = 1,402,227,150,592,947,712
  5. Step 5: Solve for x
    x = 1,402,227,150,592,947,712/1,259,775,919.80
  6. Step 6: Final answer
    x = 1,113,076,642.09

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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.