Home / 1,209,165,283.98-1,668,468,118.59-680,497,741.35

Finding the Fourth Proportional to 1,209,165,283.98, 1,668,468,118.59 and 680,497,741.35

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Solution

The fourth proportional to 1,209,165,283.98, 1,668,468,118.59 and 680,497,741.35 is: 938,985,597.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,165,283.98 : 1,668,468,118.59 = 680,497,741.35 : x
  2. Step 2: Convert to fraction form
    1,209,165,283.98/1,668,468,118.59 = 680,497,741.35/x
  3. Step 3: Cross multiply
    1,209,165,283.98x = 1,668,468,118.59 × 680,497,741.35
  4. Step 4: Simplify right side
    1,209,165,283.98x = 1,135,388,786,214,978,944
  5. Step 5: Solve for x
    x = 1,135,388,786,214,978,944/1,209,165,283.98
  6. Step 6: Final answer
    x = 938,985,597.14

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Double scale
Find fourth proportional to 1,209,165,284.98, 1,668,468,119.97 and 680,497,742.35
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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.