Home / 1,344,887,386.31-1,855,990,743.77-780,329,636.75

Finding the Fourth Proportional to 1,344,887,386.31, 1,855,990,743.77 and 780,329,636.75

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Solution

The fourth proportional to 1,344,887,386.31, 1,855,990,743.77 and 780,329,636.75 is: 1,076,881,676.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,887,386.31 : 1,855,990,743.77 = 780,329,636.75 : x
  2. Step 2: Convert to fraction form
    1,344,887,386.31/1,855,990,743.77 = 780,329,636.75/x
  3. Step 3: Cross multiply
    1,344,887,386.31x = 1,855,990,743.77 × 780,329,636.75
  4. Step 4: Simplify right side
    1,344,887,386.31x = 1,448,284,582,897,406,464
  5. Step 5: Solve for x
    x = 1,448,284,582,897,406,464/1,344,887,386.31
  6. Step 6: Final answer
    x = 1,076,881,676.22

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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.