Home / 387,688,450.47-581,703,360.33-203,411,491.35

Finding the Fourth Proportional to 387,688,450.47, 581,703,360.33 and 203,411,491.35

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Solution

The fourth proportional to 387,688,450.47, 581,703,360.33 and 203,411,491.35 is: 305,206,791.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,688,450.47 : 581,703,360.33 = 203,411,491.35 : x
  2. Step 2: Convert to fraction form
    387,688,450.47/581,703,360.33 = 203,411,491.35/x
  3. Step 3: Cross multiply
    387,688,450.47x = 581,703,360.33 × 203,411,491.35
  4. Step 4: Simplify right side
    387,688,450.47x = 118,325,148,048,031,728
  5. Step 5: Solve for x
    x = 118,325,148,048,031,728/387,688,450.47
  6. Step 6: Final answer
    x = 305,206,791.44

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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.