Home / 531,539,768.40-797,309,652.60-420,574,887.60

Finding the Fourth Proportional to 531,539,768.40, 797,309,652.60 and 420,574,887.60

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Solution

The fourth proportional to 531,539,768.40, 797,309,652.60 and 420,574,887.60 is: 630,862,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,539,768.40 : 797,309,652.60 = 420,574,887.60 : x
  2. Step 2: Convert to fraction form
    531,539,768.40/797,309,652.60 = 420,574,887.60/x
  3. Step 3: Cross multiply
    531,539,768.40x = 797,309,652.60 × 420,574,887.60
  4. Step 4: Simplify right side
    531,539,768.40x = 335,328,417,524,640,064
  5. Step 5: Solve for x
    x = 335,328,417,524,640,064/531,539,768.40
  6. Step 6: Final answer
    x = 630,862,331.40

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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.