Home / 468,112,376.48-645,750,164.48-289,439,149.66

Finding the Fourth Proportional to 468,112,376.48, 645,750,164.48 and 289,439,149.66

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Solution

The fourth proportional to 468,112,376.48, 645,750,164.48 and 289,439,149.66 is: 399,274,592.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,112,376.48 : 645,750,164.48 = 289,439,149.66 : x
  2. Step 2: Convert to fraction form
    468,112,376.48/645,750,164.48 = 289,439,149.66/x
  3. Step 3: Cross multiply
    468,112,376.48x = 645,750,164.48 × 289,439,149.66
  4. Step 4: Simplify right side
    468,112,376.48x = 186,905,378,496,834,784
  5. Step 5: Solve for x
    x = 186,905,378,496,834,784/468,112,376.48
  6. Step 6: Final answer
    x = 399,274,592.79

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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.