Home / 1,256,401,427.21-1,733,778,041.29-720,168,665.96

Finding the Fourth Proportional to 1,256,401,427.21, 1,733,778,041.29 and 720,168,665.96

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Solution

The fourth proportional to 1,256,401,427.21, 1,733,778,041.29 and 720,168,665.96 is: 993,800,700.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,401,427.21 : 1,733,778,041.29 = 720,168,665.96 : x
  2. Step 2: Convert to fraction form
    1,256,401,427.21/1,733,778,041.29 = 720,168,665.96/x
  3. Step 3: Cross multiply
    1,256,401,427.21x = 1,733,778,041.29 × 720,168,665.96
  4. Step 4: Simplify right side
    1,256,401,427.21x = 1,248,612,619,062,909,440
  5. Step 5: Solve for x
    x = 1,248,612,619,062,909,440/1,256,401,427.21
  6. Step 6: Final answer
    x = 993,800,700.97

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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.