Home / 472,392,548.80-708,588,823.20-427,042,916.80

Finding the Fourth Proportional to 472,392,548.80, 708,588,823.20 and 427,042,916.80

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Solution

The fourth proportional to 472,392,548.80, 708,588,823.20 and 427,042,916.80 is: 640,564,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,548.80 : 708,588,823.20 = 427,042,916.80 : x
  2. Step 2: Convert to fraction form
    472,392,548.80/708,588,823.20 = 427,042,916.80/x
  3. Step 3: Cross multiply
    472,392,548.80x = 708,588,823.20 × 427,042,916.80
  4. Step 4: Simplify right side
    472,392,548.80x = 302,597,837,871,207,552
  5. Step 5: Solve for x
    x = 302,597,837,871,207,552/472,392,548.80
  6. Step 6: Final answer
    x = 640,564,375.20

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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.