Home / 826,028,176.05-1,238,678,669.86-437,760,038.66

Finding the Fourth Proportional to 826,028,176.05, 1,238,678,669.86 and 437,760,038.66

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Solution

The fourth proportional to 826,028,176.05, 1,238,678,669.86 and 437,760,038.66 is: 656,447,368.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,028,176.05 : 1,238,678,669.86 = 437,760,038.66 : x
  2. Step 2: Convert to fraction form
    826,028,176.05/1,238,678,669.86 = 437,760,038.66/x
  3. Step 3: Cross multiply
    826,028,176.05x = 1,238,678,669.86 × 437,760,038.66
  4. Step 4: Simplify right side
    826,028,176.05x = 542,244,022,397,943,168
  5. Step 5: Solve for x
    x = 542,244,022,397,943,168/826,028,176.05
  6. Step 6: Final answer
    x = 656,447,368.41

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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.