Home / 680,066,500.80-1,020,099,751.20-407,968,708.80

Finding the Fourth Proportional to 680,066,500.80, 1,020,099,751.20 and 407,968,708.80

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Solution

The fourth proportional to 680,066,500.80, 1,020,099,751.20 and 407,968,708.80 is: 611,953,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,066,500.80 : 1,020,099,751.20 = 407,968,708.80 : x
  2. Step 2: Convert to fraction form
    680,066,500.80/1,020,099,751.20 = 407,968,708.80/x
  3. Step 3: Cross multiply
    680,066,500.80x = 1,020,099,751.20 × 407,968,708.80
  4. Step 4: Simplify right side
    680,066,500.80x = 416,168,778,344,265,280
  5. Step 5: Solve for x
    x = 416,168,778,344,265,280/680,066,500.80
  6. Step 6: Final answer
    x = 611,953,063.20

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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.