Home / 78,399,483.68-117,626,186.64-46,078,427.36

Finding the Fourth Proportional to 78,399,483.68, 117,626,186.64 and 46,078,427.36

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Solution

The fourth proportional to 78,399,483.68, 117,626,186.64 and 46,078,427.36 is: 69,133,487.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,399,483.68 : 117,626,186.64 = 46,078,427.36 : x
  2. Step 2: Convert to fraction form
    78,399,483.68/117,626,186.64 = 46,078,427.36/x
  3. Step 3: Cross multiply
    78,399,483.68x = 117,626,186.64 × 46,078,427.36
  4. Step 4: Simplify right side
    78,399,483.68x = 5,420,029,696,725,042
  5. Step 5: Solve for x
    x = 5,420,029,696,725,042/78,399,483.68
  6. Step 6: Final answer
    x = 69,133,487.14

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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.