Home / 1,490,454,290.86-2,056,827,245.24-812,271,402.45

Finding the Fourth Proportional to 1,490,454,290.86, 2,056,827,245.24 and 812,271,402.45

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Solution

The fourth proportional to 1,490,454,290.86, 2,056,827,245.24 and 812,271,402.45 is: 1,120,934,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,454,290.86 : 2,056,827,245.24 = 812,271,402.45 : x
  2. Step 2: Convert to fraction form
    1,490,454,290.86/2,056,827,245.24 = 812,271,402.45/x
  3. Step 3: Cross multiply
    1,490,454,290.86x = 2,056,827,245.24 × 812,271,402.45
  4. Step 4: Simplify right side
    1,490,454,290.86x = 1,670,701,951,090,495,744
  5. Step 5: Solve for x
    x = 1,670,701,951,090,495,744/1,490,454,290.86
  6. Step 6: Final answer
    x = 1,120,934,711.88

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.