Home / 1,770,129,858.96-2,442,715,171.56-977,158,806.48

Finding the Fourth Proportional to 1,770,129,858.96, 2,442,715,171.56 and 977,158,806.48

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Solution

The fourth proportional to 1,770,129,858.96, 2,442,715,171.56 and 977,158,806.48 is: 1,348,443,804.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770,129,858.96 : 2,442,715,171.56 = 977,158,806.48 : x
  2. Step 2: Convert to fraction form
    1,770,129,858.96/2,442,715,171.56 = 977,158,806.48/x
  3. Step 3: Cross multiply
    1,770,129,858.96x = 2,442,715,171.56 × 977,158,806.48
  4. Step 4: Simplify right side
    1,770,129,858.96x = 2,386,920,641,612,157,952
  5. Step 5: Solve for x
    x = 2,386,920,641,612,157,952/1,770,129,858.96
  6. Step 6: Final answer
    x = 1,348,443,804.58

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Double scale
Find fourth proportional to 1,770,129,859.96, 2,442,715,172.94 and 977,158,807.48
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1.5x scale

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.