Home / 352,343,401.40-528,515,102.10-261,644,137.40

Finding the Fourth Proportional to 352,343,401.40, 528,515,102.10 and 261,644,137.40

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Solution

The fourth proportional to 352,343,401.40, 528,515,102.10 and 261,644,137.40 is: 392,466,206.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,343,401.40 : 528,515,102.10 = 261,644,137.40 : x
  2. Step 2: Convert to fraction form
    352,343,401.40/528,515,102.10 = 261,644,137.40/x
  3. Step 3: Cross multiply
    352,343,401.40x = 528,515,102.10 × 261,644,137.40
  4. Step 4: Simplify right side
    352,343,401.40x = 138,282,877,991,827,440
  5. Step 5: Solve for x
    x = 138,282,877,991,827,440/352,343,401.40
  6. Step 6: Final answer
    x = 392,466,206.10

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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.