Home / 371,640,533.31-512,877,420.50-212,901,335.66

Finding the Fourth Proportional to 371,640,533.31, 512,877,420.50 and 212,901,335.66

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Solution

The fourth proportional to 371,640,533.31, 512,877,420.50 and 212,901,335.66 is: 293,811,568.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,640,533.31 : 512,877,420.50 = 212,901,335.66 : x
  2. Step 2: Convert to fraction form
    371,640,533.31/512,877,420.50 = 212,901,335.66/x
  3. Step 3: Cross multiply
    371,640,533.31x = 512,877,420.50 × 212,901,335.66
  4. Step 4: Simplify right side
    371,640,533.31x = 109,192,287,854,590,496
  5. Step 5: Solve for x
    x = 109,192,287,854,590,496/371,640,533.31
  6. Step 6: Final answer
    x = 293,811,568.08

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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.