Home / 76,589,128.12-105,678,541.61-45,652,176.04

Finding the Fourth Proportional to 76,589,128.12, 105,678,541.61 and 45,652,176.04

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Solution

The fourth proportional to 76,589,128.12, 105,678,541.61 and 45,652,176.04 is: 62,991,386.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,589,128.12 : 105,678,541.61 = 45,652,176.04 : x
  2. Step 2: Convert to fraction form
    76,589,128.12/105,678,541.61 = 45,652,176.04/x
  3. Step 3: Cross multiply
    76,589,128.12x = 105,678,541.61 × 45,652,176.04
  4. Step 4: Simplify right side
    76,589,128.12x = 4,824,455,385,230,185
  5. Step 5: Solve for x
    x = 4,824,455,385,230,185/76,589,128.12
  6. Step 6: Final answer
    x = 62,991,386.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.