Home / 368,854,089.56-509,019,139.61-212,218,054.95

Finding the Fourth Proportional to 368,854,089.56, 509,019,139.61 and 212,218,054.95

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Solution

The fourth proportional to 368,854,089.56, 509,019,139.61 and 212,218,054.95 is: 292,861,201.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,854,089.56 : 509,019,139.61 = 212,218,054.95 : x
  2. Step 2: Convert to fraction form
    368,854,089.56/509,019,139.61 = 212,218,054.95/x
  3. Step 3: Cross multiply
    368,854,089.56x = 509,019,139.61 × 212,218,054.95
  4. Step 4: Simplify right side
    368,854,089.56x = 108,023,051,739,295,616
  5. Step 5: Solve for x
    x = 108,023,051,739,295,616/368,854,089.56
  6. Step 6: Final answer
    x = 292,861,201.21

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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.