Home / 42,984,558.64-64,485,347.24-12,279,403.12

Finding the Fourth Proportional to 42,984,558.64, 64,485,347.24 and 12,279,403.12

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Solution

The fourth proportional to 42,984,558.64, 64,485,347.24 and 12,279,403.12 is: 18,421,535.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,984,558.64 : 64,485,347.24 = 12,279,403.12 : x
  2. Step 2: Convert to fraction form
    42,984,558.64/64,485,347.24 = 12,279,403.12/x
  3. Step 3: Cross multiply
    42,984,558.64x = 64,485,347.24 × 12,279,403.12
  4. Step 4: Simplify right side
    42,984,558.64x = 791,841,574,093,139.38
  5. Step 5: Solve for x
    x = 791,841,574,093,139.38/42,984,558.64
  6. Step 6: Final answer
    x = 18,421,535.53

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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.