Home / 838,545,537.60-1,257,806,496.60-378,482,968.80

Finding the Fourth Proportional to 838,545,537.60, 1,257,806,496.60 and 378,482,968.80

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Solution

The fourth proportional to 838,545,537.60, 1,257,806,496.60 and 378,482,968.80 is: 567,719,122.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,545,537.60 : 1,257,806,496.60 = 378,482,968.80 : x
  2. Step 2: Convert to fraction form
    838,545,537.60/1,257,806,496.60 = 378,482,968.80/x
  3. Step 3: Cross multiply
    838,545,537.60x = 1,257,806,496.60 × 378,482,968.80
  4. Step 4: Simplify right side
    838,545,537.60x = 476,058,337,009,095,104
  5. Step 5: Solve for x
    x = 476,058,337,009,095,104/838,545,537.60
  6. Step 6: Final answer
    x = 567,719,122.77

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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.