Home / 78,424,191.19-117,528,668.90-49,618,760.39

Finding the Fourth Proportional to 78,424,191.19, 117,528,668.90 and 49,618,760.39

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Solution

The fourth proportional to 78,424,191.19, 117,528,668.90 and 49,618,760.39 is: 74,360,051.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,424,191.19 : 117,528,668.90 = 49,618,760.39 : x
  2. Step 2: Convert to fraction form
    78,424,191.19/117,528,668.90 = 49,618,760.39/x
  3. Step 3: Cross multiply
    78,424,191.19x = 117,528,668.90 × 49,618,760.39
  4. Step 4: Simplify right side
    78,424,191.19x = 5,831,626,860,756,382
  5. Step 5: Solve for x
    x = 5,831,626,860,756,382/78,424,191.19
  6. Step 6: Final answer
    x = 74,360,051.05

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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.