Home / 825,865,896.60-1,238,798,844.90-458,533,877.40

Finding the Fourth Proportional to 825,865,896.60, 1,238,798,844.90 and 458,533,877.40

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Solution

The fourth proportional to 825,865,896.60, 1,238,798,844.90 and 458,533,877.40 is: 687,800,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,865,896.60 : 1,238,798,844.90 = 458,533,877.40 : x
  2. Step 2: Convert to fraction form
    825,865,896.60/1,238,798,844.90 = 458,533,877.40/x
  3. Step 3: Cross multiply
    825,865,896.60x = 1,238,798,844.90 × 458,533,877.40
  4. Step 4: Simplify right side
    825,865,896.60x = 568,031,237,670,638,208
  5. Step 5: Solve for x
    x = 568,031,237,670,638,208/825,865,896.60
  6. Step 6: Final answer
    x = 687,800,816.10

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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.