Home / 981,868,142.95-1,354,977,679.37-535,831,507.27

Finding the Fourth Proportional to 981,868,142.95, 1,354,977,679.37 and 535,831,507.27

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Solution

The fourth proportional to 981,868,142.95, 1,354,977,679.37 and 535,831,507.27 is: 739,447,284.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,868,142.95 : 1,354,977,679.37 = 535,831,507.27 : x
  2. Step 2: Convert to fraction form
    981,868,142.95/1,354,977,679.37 = 535,831,507.27/x
  3. Step 3: Cross multiply
    981,868,142.95x = 1,354,977,679.37 × 535,831,507.27
  4. Step 4: Simplify right side
    981,868,142.95x = 726,039,732,253,809,152
  5. Step 5: Solve for x
    x = 726,039,732,253,809,152/981,868,142.95
  6. Step 6: Final answer
    x = 739,447,284.72

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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.