Home / 1,556,339,277.32-2,147,799,420.93-851,475,128.69

Finding the Fourth Proportional to 1,556,339,277.32, 2,147,799,420.93 and 851,475,128.69

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Solution

The fourth proportional to 1,556,339,277.32, 2,147,799,420.93 and 851,475,128.69 is: 1,175,063,699.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,339,277.32 : 2,147,799,420.93 = 851,475,128.69 : x
  2. Step 2: Convert to fraction form
    1,556,339,277.32/2,147,799,420.93 = 851,475,128.69/x
  3. Step 3: Cross multiply
    1,556,339,277.32x = 2,147,799,420.93 × 851,475,128.69
  4. Step 4: Simplify right side
    1,556,339,277.32x = 1,828,797,788,345,284,608
  5. Step 5: Solve for x
    x = 1,828,797,788,345,284,608/1,556,339,277.32
  6. Step 6: Final answer
    x = 1,175,063,699.15

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Double scale
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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.