Home / 777,687,827-1,072,703,518.38-498,787,590.20

Finding the Fourth Proportional to 777,687,827, 1,072,703,518.38 and 498,787,590.20

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Solution

The fourth proportional to 777,687,827, 1,072,703,518.38 and 498,787,590.20 is: 688,002,543.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,687,827 : 1,072,703,518.38 = 498,787,590.20 : x
  2. Step 2: Convert to fraction form
    777,687,827/1,072,703,518.38 = 498,787,590.20/x
  3. Step 3: Cross multiply
    777,687,827x = 1,072,703,518.38 × 498,787,590.20
  4. Step 4: Simplify right side
    777,687,827x = 535,051,202,931,821,568
  5. Step 5: Solve for x
    x = 535,051,202,931,821,568/777,687,827
  6. Step 6: Final answer
    x = 688,002,543.38

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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.