Home / 1,213,995,816.16-1,821,059,948.40-384,889,496.08

Finding the Fourth Proportional to 1,213,995,816.16, 1,821,059,948.40 and 384,889,496.08

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Solution

The fourth proportional to 1,213,995,816.16, 1,821,059,948.40 and 384,889,496.08 is: 577,355,240.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,995,816.16 : 1,821,059,948.40 = 384,889,496.08 : x
  2. Step 2: Convert to fraction form
    1,213,995,816.16/1,821,059,948.40 = 384,889,496.08/x
  3. Step 3: Cross multiply
    1,213,995,816.16x = 1,821,059,948.40 × 384,889,496.08
  4. Step 4: Simplify right side
    1,213,995,816.16x = 700,906,845,871,146,752
  5. Step 5: Solve for x
    x = 700,906,845,871,146,752/1,213,995,816.16
  6. Step 6: Final answer
    x = 577,355,240.06

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Double scale
Find fourth proportional to 1,213,995,817.16, 1,821,059,949.90 and 384,889,497.08
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.