Home / 648,255,075.49-894,257,238.04-439,339,771.81

Finding the Fourth Proportional to 648,255,075.49, 894,257,238.04 and 439,339,771.81

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Solution

The fourth proportional to 648,255,075.49, 894,257,238.04 and 439,339,771.81 is: 606,062,005.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,255,075.49 : 894,257,238.04 = 439,339,771.81 : x
  2. Step 2: Convert to fraction form
    648,255,075.49/894,257,238.04 = 439,339,771.81/x
  3. Step 3: Cross multiply
    648,255,075.49x = 894,257,238.04 × 439,339,771.81
  4. Step 4: Simplify right side
    648,255,075.49x = 392,882,770,899,934,464
  5. Step 5: Solve for x
    x = 392,882,770,899,934,464/648,255,075.49
  6. Step 6: Final answer
    x = 606,062,005.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.