Home / 907,567,288.74-1,361,399,206.68-285,831,141.66

Finding the Fourth Proportional to 907,567,288.74, 1,361,399,206.68 and 285,831,141.66

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Solution

The fourth proportional to 907,567,288.74, 1,361,399,206.68 and 285,831,141.66 is: 428,761,915.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,567,288.74 : 1,361,399,206.68 = 285,831,141.66 : x
  2. Step 2: Convert to fraction form
    907,567,288.74/1,361,399,206.68 = 285,831,141.66/x
  3. Step 3: Cross multiply
    907,567,288.74x = 1,361,399,206.68 × 285,831,141.66
  4. Step 4: Simplify right side
    907,567,288.74x = 389,130,289,500,362,752
  5. Step 5: Solve for x
    x = 389,130,289,500,362,752/907,567,288.74
  6. Step 6: Final answer
    x = 428,761,915.87

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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.