Home / 78,083,946-117,196,168.95-41,723,417.25

Finding the Fourth Proportional to 78,083,946, 117,196,168.95 and 41,723,417.25

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Solution

The fourth proportional to 78,083,946, 117,196,168.95 and 41,723,417.25 is: 62,622,663.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,083,946 : 117,196,168.95 = 41,723,417.25 : x
  2. Step 2: Convert to fraction form
    78,083,946/117,196,168.95 = 41,723,417.25/x
  3. Step 3: Cross multiply
    78,083,946x = 117,196,168.95 × 41,723,417.25
  4. Step 4: Simplify right side
    78,083,946x = 4,889,824,657,202,345
  5. Step 5: Solve for x
    x = 4,889,824,657,202,345/78,083,946
  6. Step 6: Final answer
    x = 62,622,663.27

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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.