Home / 355,931,427.20-533,897,140.80-279,490,236.80

Finding the Fourth Proportional to 355,931,427.20, 533,897,140.80 and 279,490,236.80

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Solution

The fourth proportional to 355,931,427.20, 533,897,140.80 and 279,490,236.80 is: 419,235,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,931,427.20 : 533,897,140.80 = 279,490,236.80 : x
  2. Step 2: Convert to fraction form
    355,931,427.20/533,897,140.80 = 279,490,236.80/x
  3. Step 3: Cross multiply
    355,931,427.20x = 533,897,140.80 × 279,490,236.80
  4. Step 4: Simplify right side
    355,931,427.20x = 149,219,038,309,034,944
  5. Step 5: Solve for x
    x = 149,219,038,309,034,944/355,931,427.20
  6. Step 6: Final answer
    x = 419,235,355.20

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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.