Home / 1,057,118,683.59-1,585,667,927.61-642,709,918.85

Finding the Fourth Proportional to 1,057,118,683.59, 1,585,667,927.61 and 642,709,918.85

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Solution

The fourth proportional to 1,057,118,683.59, 1,585,667,927.61 and 642,709,918.85 is: 964,058,738.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,118,683.59 : 1,585,667,927.61 = 642,709,918.85 : x
  2. Step 2: Convert to fraction form
    1,057,118,683.59/1,585,667,927.61 = 642,709,918.85/x
  3. Step 3: Cross multiply
    1,057,118,683.59x = 1,585,667,927.61 × 642,709,918.85
  4. Step 4: Simplify right side
    1,057,118,683.59x = 1,019,124,505,069,342,464
  5. Step 5: Solve for x
    x = 1,019,124,505,069,342,464/1,057,118,683.59
  6. Step 6: Final answer
    x = 964,058,738.99

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Double scale
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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.