Home / 40,140,040,178.12-60,236,586,128.31-18,898,563,457.98

Finding the Fourth Proportional to 40,140,040,178.12, 60,236,586,128.31 and 18,898,563,457.98

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Solution

The fourth proportional to 40,140,040,178.12, 60,236,586,128.31 and 18,898,563,457.98 is: 28,360,333,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,140,040,178.12 : 60,236,586,128.31 = 18,898,563,457.98 : x
  2. Step 2: Convert to fraction form
    40,140,040,178.12/60,236,586,128.31 = 18,898,563,457.98/x
  3. Step 3: Cross multiply
    40,140,040,178.12x = 60,236,586,128.31 × 18,898,563,457.98
  4. Step 4: Simplify right side
    40,140,040,178.12x = 1,138,384,945,437,887,561,728
  5. Step 5: Solve for x
    x = 1,138,384,945,437,887,561,728/40,140,040,178.12
  6. Step 6: Final answer
    x = 28,360,333,980.40

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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.