Home / 1,242,251,674.40-1,861,794,998.40-660,264,730.40

Finding the Fourth Proportional to 1,242,251,674.40, 1,861,794,998.40 and 660,264,730.40

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Solution

The fourth proportional to 1,242,251,674.40, 1,861,794,998.40 and 660,264,730.40 is: 989,555,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,251,674.40 : 1,861,794,998.40 = 660,264,730.40 : x
  2. Step 2: Convert to fraction form
    1,242,251,674.40/1,861,794,998.40 = 660,264,730.40/x
  3. Step 3: Cross multiply
    1,242,251,674.40x = 1,861,794,998.40 × 660,264,730.40
  4. Step 4: Simplify right side
    1,242,251,674.40x = 1,229,277,572,678,644,480
  5. Step 5: Solve for x
    x = 1,229,277,572,678,644,480/1,242,251,674.40
  6. Step 6: Final answer
    x = 989,555,979.69

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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.