Home / 543,872,878.30-750,521,102.79-308,922,807.34

Finding the Fourth Proportional to 543,872,878.30, 750,521,102.79 and 308,922,807.34

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Solution

The fourth proportional to 543,872,878.30, 750,521,102.79 and 308,922,807.34 is: 426,300,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,872,878.30 : 750,521,102.79 = 308,922,807.34 : x
  2. Step 2: Convert to fraction form
    543,872,878.30/750,521,102.79 = 308,922,807.34/x
  3. Step 3: Cross multiply
    543,872,878.30x = 750,521,102.79 × 308,922,807.34
  4. Step 4: Simplify right side
    543,872,878.30x = 231,853,086,041,799,488
  5. Step 5: Solve for x
    x = 231,853,086,041,799,488/543,872,878.30
  6. Step 6: Final answer
    x = 426,300,143.46

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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.