Home / 403,890,984.42-606,020,557.03-207,292,457.51

Finding the Fourth Proportional to 403,890,984.42, 606,020,557.03 and 207,292,457.51

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Solution

The fourth proportional to 403,890,984.42, 606,020,557.03 and 207,292,457.51 is: 311,033,163.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,890,984.42 : 606,020,557.03 = 207,292,457.51 : x
  2. Step 2: Convert to fraction form
    403,890,984.42/606,020,557.03 = 207,292,457.51/x
  3. Step 3: Cross multiply
    403,890,984.42x = 606,020,557.03 × 207,292,457.51
  4. Step 4: Simplify right side
    403,890,984.42x = 125,623,490,568,327,792
  5. Step 5: Solve for x
    x = 125,623,490,568,327,792/403,890,984.42
  6. Step 6: Final answer
    x = 311,033,163.44

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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.