Home / 76,366,617.93-105,408,139.76-49,908,951.89

Finding the Fourth Proportional to 76,366,617.93, 105,408,139.76 and 49,908,951.89

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Solution

The fourth proportional to 76,366,617.93, 105,408,139.76 and 49,908,951.89 is: 68,888,866.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,366,617.93 : 105,408,139.76 = 49,908,951.89 : x
  2. Step 2: Convert to fraction form
    76,366,617.93/105,408,139.76 = 49,908,951.89/x
  3. Step 3: Cross multiply
    76,366,617.93x = 105,408,139.76 × 49,908,951.89
  4. Step 4: Simplify right side
    76,366,617.93x = 5,260,809,775,319,650
  5. Step 5: Solve for x
    x = 5,260,809,775,319,650/76,366,617.93
  6. Step 6: Final answer
    x = 68,888,866.86

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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.