Home / 1,212,878,077.14-1,673,771,733.50-655,961,124.21

Finding the Fourth Proportional to 1,212,878,077.14, 1,673,771,733.50 and 655,961,124.21

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Solution

The fourth proportional to 1,212,878,077.14, 1,673,771,733.50 and 655,961,124.21 is: 905,226,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,878,077.14 : 1,673,771,733.50 = 655,961,124.21 : x
  2. Step 2: Convert to fraction form
    1,212,878,077.14/1,673,771,733.50 = 655,961,124.21/x
  3. Step 3: Cross multiply
    1,212,878,077.14x = 1,673,771,733.50 × 655,961,124.21
  4. Step 4: Simplify right side
    1,212,878,077.14x = 1,097,929,187,970,450,944
  5. Step 5: Solve for x
    x = 1,097,929,187,970,450,944/1,212,878,077.14
  6. Step 6: Final answer
    x = 905,226,344.40

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Double scale
Find fourth proportional to 1,212,878,078.14, 1,673,771,734.88 and 655,961,125.21
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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.