Home / 1,901,256,911.40-2,849,872,560.81-639,519,894.72

Finding the Fourth Proportional to 1,901,256,911.40, 2,849,872,560.81 and 639,519,894.72

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Solution

The fourth proportional to 1,901,256,911.40, 2,849,872,560.81 and 639,519,894.72 is: 958,602,800.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901,256,911.40 : 2,849,872,560.81 = 639,519,894.72 : x
  2. Step 2: Convert to fraction form
    1,901,256,911.40/2,849,872,560.81 = 639,519,894.72/x
  3. Step 3: Cross multiply
    1,901,256,911.40x = 2,849,872,560.81 × 639,519,894.72
  4. Step 4: Simplify right side
    1,901,256,911.40x = 1,822,550,200,054,628,096
  5. Step 5: Solve for x
    x = 1,822,550,200,054,628,096/1,901,256,911.40
  6. Step 6: Final answer
    x = 958,602,800.67

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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.