Home / 690,716,464.40-1,034,731,003.80-417,274,979.60

Finding the Fourth Proportional to 690,716,464.40, 1,034,731,003.80 and 417,274,979.60

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Solution

The fourth proportional to 690,716,464.40, 1,034,731,003.80 and 417,274,979.60 is: 625,100,718.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,716,464.40 : 1,034,731,003.80 = 417,274,979.60 : x
  2. Step 2: Convert to fraction form
    690,716,464.40/1,034,731,003.80 = 417,274,979.60/x
  3. Step 3: Cross multiply
    690,716,464.40x = 1,034,731,003.80 × 417,274,979.60
  4. Step 4: Simplify right side
    690,716,464.40x = 431,767,358,502,132,544
  5. Step 5: Solve for x
    x = 431,767,358,502,132,544/690,716,464.40
  6. Step 6: Final answer
    x = 625,100,718.97

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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.