Home / 1,207,251,719.70-1,810,877,579.55-430,922,706.90

Finding the Fourth Proportional to 1,207,251,719.70, 1,810,877,579.55 and 430,922,706.90

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Solution

The fourth proportional to 1,207,251,719.70, 1,810,877,579.55 and 430,922,706.90 is: 646,384,060.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,251,719.70 : 1,810,877,579.55 = 430,922,706.90 : x
  2. Step 2: Convert to fraction form
    1,207,251,719.70/1,810,877,579.55 = 430,922,706.90/x
  3. Step 3: Cross multiply
    1,207,251,719.70x = 1,810,877,579.55 × 430,922,706.90
  4. Step 4: Simplify right side
    1,207,251,719.70x = 780,348,268,444,206,080
  5. Step 5: Solve for x
    x = 780,348,268,444,206,080/1,207,251,719.70
  6. Step 6: Final answer
    x = 646,384,060.35

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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.