Home / 823,528,343.60-1,235,292,515.40-278,262,004.40

Finding the Fourth Proportional to 823,528,343.60, 1,235,292,515.40 and 278,262,004.40

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Solution

The fourth proportional to 823,528,343.60, 1,235,292,515.40 and 278,262,004.40 is: 417,393,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,528,343.60 : 1,235,292,515.40 = 278,262,004.40 : x
  2. Step 2: Convert to fraction form
    823,528,343.60/1,235,292,515.40 = 278,262,004.40/x
  3. Step 3: Cross multiply
    823,528,343.60x = 1,235,292,515.40 × 278,262,004.40
  4. Step 4: Simplify right side
    823,528,343.60x = 343,734,971,355,521,856
  5. Step 5: Solve for x
    x = 343,734,971,355,521,856/823,528,343.60
  6. Step 6: Final answer
    x = 417,393,006.60

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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.