Home / 1,258,743,607.80-1,888,115,411.70-768,967,582.20

Finding the Fourth Proportional to 1,258,743,607.80, 1,888,115,411.70 and 768,967,582.20

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Solution

The fourth proportional to 1,258,743,607.80, 1,888,115,411.70 and 768,967,582.20 is: 1,153,451,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,743,607.80 : 1,888,115,411.70 = 768,967,582.20 : x
  2. Step 2: Convert to fraction form
    1,258,743,607.80/1,888,115,411.70 = 768,967,582.20/x
  3. Step 3: Cross multiply
    1,258,743,607.80x = 1,888,115,411.70 × 768,967,582.20
  4. Step 4: Simplify right side
    1,258,743,607.80x = 1,451,899,543,049,506,816
  5. Step 5: Solve for x
    x = 1,451,899,543,049,506,816/1,258,743,607.80
  6. Step 6: Final answer
    x = 1,153,451,373.30

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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.