Home / 19,686,642.30-29,529,963.45-12,088,971.90

Finding the Fourth Proportional to 19,686,642.30, 29,529,963.45 and 12,088,971.90

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Solution

The fourth proportional to 19,686,642.30, 29,529,963.45 and 12,088,971.90 is: 18,133,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,686,642.30 : 29,529,963.45 = 12,088,971.90 : x
  2. Step 2: Convert to fraction form
    19,686,642.30/29,529,963.45 = 12,088,971.90/x
  3. Step 3: Cross multiply
    19,686,642.30x = 29,529,963.45 × 12,088,971.90
  4. Step 4: Simplify right side
    19,686,642.30x = 356,986,898,355,077.06
  5. Step 5: Solve for x
    x = 356,986,898,355,077.06/19,686,642.30
  6. Step 6: Final answer
    x = 18,133,457.85

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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.