Home / 1,916,928,139.70-2,875,392,209.55-768,894,706.10

Finding the Fourth Proportional to 1,916,928,139.70, 2,875,392,209.55 and 768,894,706.10

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Solution

The fourth proportional to 1,916,928,139.70, 2,875,392,209.55 and 768,894,706.10 is: 1,153,342,059.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,928,139.70 : 2,875,392,209.55 = 768,894,706.10 : x
  2. Step 2: Convert to fraction form
    1,916,928,139.70/2,875,392,209.55 = 768,894,706.10/x
  3. Step 3: Cross multiply
    1,916,928,139.70x = 2,875,392,209.55 × 768,894,706.10
  4. Step 4: Simplify right side
    1,916,928,139.70x = 2,210,873,847,884,177,152
  5. Step 5: Solve for x
    x = 2,210,873,847,884,177,152/1,916,928,139.70
  6. Step 6: Final answer
    x = 1,153,342,059.15

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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.