Home / 78,130,834.07-117,196,189.60-23,543,420.23

Finding the Fourth Proportional to 78,130,834.07, 117,196,189.60 and 23,543,420.23

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Solution

The fourth proportional to 78,130,834.07, 117,196,189.60 and 23,543,420.23 is: 35,315,111.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,130,834.07 : 117,196,189.60 = 23,543,420.23 : x
  2. Step 2: Convert to fraction form
    78,130,834.07/117,196,189.60 = 23,543,420.23/x
  3. Step 3: Cross multiply
    78,130,834.07x = 117,196,189.60 × 23,543,420.23
  4. Step 4: Simplify right side
    78,130,834.07x = 2,759,199,141,602,087.50
  5. Step 5: Solve for x
    x = 2,759,199,141,602,087.50/78,130,834.07
  6. Step 6: Final answer
    x = 35,315,111.82

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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.