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Finding the Fourth Proportional to 613,772,807.88, 921,241,267.74 and 379,896,065.77

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Solution

The fourth proportional to 613,772,807.88, 921,241,267.74 and 379,896,065.77 is: 570,204,363.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,772,807.88 : 921,241,267.74 = 379,896,065.77 : x
  2. Step 2: Convert to fraction form
    613,772,807.88/921,241,267.74 = 379,896,065.77/x
  3. Step 3: Cross multiply
    613,772,807.88x = 921,241,267.74 × 379,896,065.77
  4. Step 4: Simplify right side
    613,772,807.88x = 349,975,933,237,090,112
  5. Step 5: Solve for x
    x = 349,975,933,237,090,112/613,772,807.88
  6. Step 6: Final answer
    x = 570,204,363.48

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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.