Home / 786,953,730.72-1,180,839,130.92-320,957,032.62

Finding the Fourth Proportional to 786,953,730.72, 1,180,839,130.92 and 320,957,032.62

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Solution

The fourth proportional to 786,953,730.72, 1,180,839,130.92 and 320,957,032.62 is: 481,602,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,953,730.72 : 1,180,839,130.92 = 320,957,032.62 : x
  2. Step 2: Convert to fraction form
    786,953,730.72/1,180,839,130.92 = 320,957,032.62/x
  3. Step 3: Cross multiply
    786,953,730.72x = 1,180,839,130.92 × 320,957,032.62
  4. Step 4: Simplify right side
    786,953,730.72x = 378,998,623,461,662,912
  5. Step 5: Solve for x
    x = 378,998,623,461,662,912/786,953,730.72
  6. Step 6: Final answer
    x = 481,602,168.80

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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.