Home / 543,283,395.60-814,925,093.40-391,362,128.40

Finding the Fourth Proportional to 543,283,395.60, 814,925,093.40 and 391,362,128.40

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Solution

The fourth proportional to 543,283,395.60, 814,925,093.40 and 391,362,128.40 is: 587,043,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,283,395.60 : 814,925,093.40 = 391,362,128.40 : x
  2. Step 2: Convert to fraction form
    543,283,395.60/814,925,093.40 = 391,362,128.40/x
  3. Step 3: Cross multiply
    543,283,395.60x = 814,925,093.40 × 391,362,128.40
  4. Step 4: Simplify right side
    543,283,395.60x = 318,930,819,039,592,768
  5. Step 5: Solve for x
    x = 318,930,819,039,592,768/543,283,395.60
  6. Step 6: Final answer
    x = 587,043,192.60

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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.