Home / 1,428,372,935.45-1,971,179,020.26-784,656,013.11

Finding the Fourth Proportional to 1,428,372,935.45, 1,971,179,020.26 and 784,656,013.11

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Solution

The fourth proportional to 1,428,372,935.45, 1,971,179,020.26 and 784,656,013.11 is: 1,082,838,685.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,372,935.45 : 1,971,179,020.26 = 784,656,013.11 : x
  2. Step 2: Convert to fraction form
    1,428,372,935.45/1,971,179,020.26 = 784,656,013.11/x
  3. Step 3: Cross multiply
    1,428,372,935.45x = 1,971,179,020.26 × 784,656,013.11
  4. Step 4: Simplify right side
    1,428,372,935.45x = 1,546,697,471,155,895,808
  5. Step 5: Solve for x
    x = 1,546,697,471,155,895,808/1,428,372,935.45
  6. Step 6: Final answer
    x = 1,082,838,685.03

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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.