Home / 509,288,443.95-763,619,814.60-198,033,248.67

Finding the Fourth Proportional to 509,288,443.95, 763,619,814.60 and 198,033,248.67

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Solution

The fourth proportional to 509,288,443.95, 763,619,814.60 and 198,033,248.67 is: 296,928,222.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,288,443.95 : 763,619,814.60 = 198,033,248.67 : x
  2. Step 2: Convert to fraction form
    509,288,443.95/763,619,814.60 = 198,033,248.67/x
  3. Step 3: Cross multiply
    509,288,443.95x = 763,619,814.60 × 198,033,248.67
  4. Step 4: Simplify right side
    509,288,443.95x = 151,222,112,634,021,088
  5. Step 5: Solve for x
    x = 151,222,112,634,021,088/509,288,443.95
  6. Step 6: Final answer
    x = 296,928,222.96

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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.