Home / 424,015,018.56-635,569,022.88-193,638,888

Finding the Fourth Proportional to 424,015,018.56, 635,569,022.88 and 193,638,888

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Solution

The fourth proportional to 424,015,018.56, 635,569,022.88 and 193,638,888 is: 290,251,225.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,015,018.56 : 635,569,022.88 = 193,638,888 : x
  2. Step 2: Convert to fraction form
    424,015,018.56/635,569,022.88 = 193,638,888/x
  3. Step 3: Cross multiply
    424,015,018.56x = 635,569,022.88 × 193,638,888
  4. Step 4: Simplify right side
    424,015,018.56x = 123,070,878,837,729,760
  5. Step 5: Solve for x
    x = 123,070,878,837,729,760/424,015,018.56
  6. Step 6: Final answer
    x = 290,251,225.67

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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.