Home / 371,098,624.89-512,205,293.70-212,420,731.23

Finding the Fourth Proportional to 371,098,624.89, 512,205,293.70 and 212,420,731.23

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Solution

The fourth proportional to 371,098,624.89, 512,205,293.70 and 212,420,731.23 is: 293,191,663.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,098,624.89 : 512,205,293.70 = 212,420,731.23 : x
  2. Step 2: Convert to fraction form
    371,098,624.89/512,205,293.70 = 212,420,731.23/x
  3. Step 3: Cross multiply
    371,098,624.89x = 512,205,293.70 × 212,420,731.23
  4. Step 4: Simplify right side
    371,098,624.89x = 108,803,023,027,630,912
  5. Step 5: Solve for x
    x = 108,803,023,027,630,912/371,098,624.89
  6. Step 6: Final answer
    x = 293,191,663.16

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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.