Home / 930,362,571.20-1,283,908,958.79-512,689,803.68

Finding the Fourth Proportional to 930,362,571.20, 1,283,908,958.79 and 512,689,803.68

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Solution

The fourth proportional to 930,362,571.20, 1,283,908,958.79 and 512,689,803.68 is: 707,516,674.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,362,571.20 : 1,283,908,958.79 = 512,689,803.68 : x
  2. Step 2: Convert to fraction form
    930,362,571.20/1,283,908,958.79 = 512,689,803.68/x
  3. Step 3: Cross multiply
    930,362,571.20x = 1,283,908,958.79 × 512,689,803.68
  4. Step 4: Simplify right side
    930,362,571.20x = 658,247,032,026,299,904
  5. Step 5: Solve for x
    x = 658,247,032,026,299,904/930,362,571.20
  6. Step 6: Final answer
    x = 707,516,674.04

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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.