Home / 78,424,191.69-117,528,669.65-49,618,760.89

Finding the Fourth Proportional to 78,424,191.69, 117,528,669.65 and 49,618,760.89

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Solution

The fourth proportional to 78,424,191.69, 117,528,669.65 and 49,618,760.89 is: 74,360,051.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,424,191.69 : 117,528,669.65 = 49,618,760.89 : x
  2. Step 2: Convert to fraction form
    78,424,191.69/117,528,669.65 = 49,618,760.89/x
  3. Step 3: Cross multiply
    78,424,191.69x = 117,528,669.65 × 49,618,760.89
  4. Step 4: Simplify right side
    78,424,191.69x = 5,831,626,956,835,056
  5. Step 5: Solve for x
    x = 5,831,626,956,835,056/78,424,191.69
  6. Step 6: Final answer
    x = 74,360,051.81

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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.