Home / 380,240,812.71-569,378,926.73-262,429,103.45

Finding the Fourth Proportional to 380,240,812.71, 569,378,926.73 and 262,429,103.45

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Solution

The fourth proportional to 380,240,812.71, 569,378,926.73 and 262,429,103.45 is: 392,965,710.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,240,812.71 : 569,378,926.73 = 262,429,103.45 : x
  2. Step 2: Convert to fraction form
    380,240,812.71/569,378,926.73 = 262,429,103.45/x
  3. Step 3: Cross multiply
    380,240,812.71x = 569,378,926.73 × 262,429,103.45
  4. Step 4: Simplify right side
    380,240,812.71x = 149,421,601,260,918,112
  5. Step 5: Solve for x
    x = 149,421,601,260,918,112/380,240,812.71
  6. Step 6: Final answer
    x = 392,965,710.85

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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.