Home / 1,284,428,139.18-1,772,559,556.56-719,923,454.34

Finding the Fourth Proportional to 1,284,428,139.18, 1,772,559,556.56 and 719,923,454.34

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Solution

The fourth proportional to 1,284,428,139.18, 1,772,559,556.56 and 719,923,454.34 is: 993,521,677.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,428,139.18 : 1,772,559,556.56 = 719,923,454.34 : x
  2. Step 2: Convert to fraction form
    1,284,428,139.18/1,772,559,556.56 = 719,923,454.34/x
  3. Step 3: Cross multiply
    1,284,428,139.18x = 1,772,559,556.56 × 719,923,454.34
  4. Step 4: Simplify right side
    1,284,428,139.18x = 1,276,107,198,982,053,888
  5. Step 5: Solve for x
    x = 1,276,107,198,982,053,888/1,284,428,139.18
  6. Step 6: Final answer
    x = 993,521,677.12

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Double scale
Find fourth proportional to 1,284,428,140.18, 1,772,559,557.94 and 719,923,455.34
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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.