Home / 1,251,606,862.20-1,878,082,139.70-524,669,057.40

Finding the Fourth Proportional to 1,251,606,862.20, 1,878,082,139.70 and 524,669,057.40

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Solution

The fourth proportional to 1,251,606,862.20, 1,878,082,139.70 and 524,669,057.40 is: 787,285,221.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,606,862.20 : 1,878,082,139.70 = 524,669,057.40 : x
  2. Step 2: Convert to fraction form
    1,251,606,862.20/1,878,082,139.70 = 524,669,057.40/x
  3. Step 3: Cross multiply
    1,251,606,862.20x = 1,878,082,139.70 × 524,669,057.40
  4. Step 4: Simplify right side
    1,251,606,862.20x = 985,371,585,956,174,080
  5. Step 5: Solve for x
    x = 985,371,585,956,174,080/1,251,606,862.20
  6. Step 6: Final answer
    x = 787,285,221.67

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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.