Home / 1,543,953,391.20-2,130,672,137.40-839,105,423.64

Finding the Fourth Proportional to 1,543,953,391.20, 2,130,672,137.40 and 839,105,423.64

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Solution

The fourth proportional to 1,543,953,391.20, 2,130,672,137.40 and 839,105,423.64 is: 1,157,974,428.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,953,391.20 : 2,130,672,137.40 = 839,105,423.64 : x
  2. Step 2: Convert to fraction form
    1,543,953,391.20/2,130,672,137.40 = 839,105,423.64/x
  3. Step 3: Cross multiply
    1,543,953,391.20x = 2,130,672,137.40 × 839,105,423.64
  4. Step 4: Simplify right side
    1,543,953,391.20x = 1,787,858,546,490,971,392
  5. Step 5: Solve for x
    x = 1,787,858,546,490,971,392/1,543,953,391.20
  6. Step 6: Final answer
    x = 1,157,974,428.94

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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.