Home / 1,258,743,620.30-1,888,115,430.45-768,967,594.70

Finding the Fourth Proportional to 1,258,743,620.30, 1,888,115,430.45 and 768,967,594.70

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Solution

The fourth proportional to 1,258,743,620.30, 1,888,115,430.45 and 768,967,594.70 is: 1,153,451,392.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,743,620.30 : 1,888,115,430.45 = 768,967,594.70 : x
  2. Step 2: Convert to fraction form
    1,258,743,620.30/1,888,115,430.45 = 768,967,594.70/x
  3. Step 3: Cross multiply
    1,258,743,620.30x = 1,888,115,430.45 × 768,967,594.70
  4. Step 4: Simplify right side
    1,258,743,620.30x = 1,451,899,581,069,091,840
  5. Step 5: Solve for x
    x = 1,451,899,581,069,091,840/1,258,743,620.30
  6. Step 6: Final answer
    x = 1,153,451,392.05

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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.