Home / 909,786,278.57-1,364,683,415.81-288,004,564.91

Finding the Fourth Proportional to 909,786,278.57, 1,364,683,415.81 and 288,004,564.91

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Solution

The fourth proportional to 909,786,278.57, 1,364,683,415.81 and 288,004,564.91 is: 432,008,112.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,786,278.57 : 1,364,683,415.81 = 288,004,564.91 : x
  2. Step 2: Convert to fraction form
    909,786,278.57/1,364,683,415.81 = 288,004,564.91/x
  3. Step 3: Cross multiply
    909,786,278.57x = 1,364,683,415.81 × 288,004,564.91
  4. Step 4: Simplify right side
    909,786,278.57x = 393,035,053,412,223,424
  5. Step 5: Solve for x
    x = 393,035,053,412,223,424/909,786,278.57
  6. Step 6: Final answer
    x = 432,008,112.97

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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.