Home / 42,024,739.09-63,038,997.96-12,876,443.20

Finding the Fourth Proportional to 42,024,739.09, 63,038,997.96 and 12,876,443.20

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Solution

The fourth proportional to 42,024,739.09, 63,038,997.96 and 12,876,443.20 is: 19,315,243.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,024,739.09 : 63,038,997.96 = 12,876,443.20 : x
  2. Step 2: Convert to fraction form
    42,024,739.09/63,038,997.96 = 12,876,443.20/x
  3. Step 3: Cross multiply
    42,024,739.09x = 63,038,997.96 × 12,876,443.20
  4. Step 4: Simplify right side
    42,024,739.09x = 811,718,076,616,855.88
  5. Step 5: Solve for x
    x = 811,718,076,616,855.88/42,024,739.09
  6. Step 6: Final answer
    x = 19,315,243.69

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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.