Home / 1,278,489,416.10-1,917,734,124.15-589,741,880.10

Finding the Fourth Proportional to 1,278,489,416.10, 1,917,734,124.15 and 589,741,880.10

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Solution

The fourth proportional to 1,278,489,416.10, 1,917,734,124.15 and 589,741,880.10 is: 884,612,820.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,489,416.10 : 1,917,734,124.15 = 589,741,880.10 : x
  2. Step 2: Convert to fraction form
    1,278,489,416.10/1,917,734,124.15 = 589,741,880.10/x
  3. Step 3: Cross multiply
    1,278,489,416.10x = 1,917,734,124.15 × 589,741,880.10
  4. Step 4: Simplify right side
    1,278,489,416.10x = 1,130,968,127,908,147,968
  5. Step 5: Solve for x
    x = 1,130,968,127,908,147,968/1,278,489,416.10
  6. Step 6: Final answer
    x = 884,612,820.15

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Double scale
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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.