Home / 981,868,143.08-1,354,977,679.55-535,831,507.39

Finding the Fourth Proportional to 981,868,143.08, 1,354,977,679.55 and 535,831,507.39

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Solution

The fourth proportional to 981,868,143.08, 1,354,977,679.55 and 535,831,507.39 is: 739,447,284.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,868,143.08 : 1,354,977,679.55 = 535,831,507.39 : x
  2. Step 2: Convert to fraction form
    981,868,143.08/1,354,977,679.55 = 535,831,507.39/x
  3. Step 3: Cross multiply
    981,868,143.08x = 1,354,977,679.55 × 535,831,507.39
  4. Step 4: Simplify right side
    981,868,143.08x = 726,039,732,516,179,456
  5. Step 5: Solve for x
    x = 726,039,732,516,179,456/981,868,143.08
  6. Step 6: Final answer
    x = 739,447,284.89

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Half scale
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Double scale
Find fourth proportional to 981,868,144.08, 1,354,977,680.93 and 535,831,508.39
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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.