Home / 1,225,283,082.94-1,690,901,446.05-668,368,606.78

Finding the Fourth Proportional to 1,225,283,082.94, 1,690,901,446.05 and 668,368,606.78

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Solution

The fourth proportional to 1,225,283,082.94, 1,690,901,446.05 and 668,368,606.78 is: 922,354,563.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,283,082.94 : 1,690,901,446.05 = 668,368,606.78 : x
  2. Step 2: Convert to fraction form
    1,225,283,082.94/1,690,901,446.05 = 668,368,606.78/x
  3. Step 3: Cross multiply
    1,225,283,082.94x = 1,690,901,446.05 × 668,368,606.78
  4. Step 4: Simplify right side
    1,225,283,082.94x = 1,130,145,443,698,725,760
  5. Step 5: Solve for x
    x = 1,130,145,443,698,725,760/1,225,283,082.94
  6. Step 6: Final answer
    x = 922,354,563.96

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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.