Home / 209,689,957.77-314,580,339.81-80,297,572.51

Finding the Fourth Proportional to 209,689,957.77, 314,580,339.81 and 80,297,572.51

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Solution

The fourth proportional to 209,689,957.77, 314,580,339.81 and 80,297,572.51 is: 120,463,745.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,689,957.77 : 314,580,339.81 = 80,297,572.51 : x
  2. Step 2: Convert to fraction form
    209,689,957.77/314,580,339.81 = 80,297,572.51/x
  3. Step 3: Cross multiply
    209,689,957.77x = 314,580,339.81 × 80,297,572.51
  4. Step 4: Simplify right side
    209,689,957.77x = 25,260,037,646,113,916
  5. Step 5: Solve for x
    x = 25,260,037,646,113,916/209,689,957.77
  6. Step 6: Final answer
    x = 120,463,745.21

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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.