Home / 78,558,970.55-117,831,185.13-37,050,329.12

Finding the Fourth Proportional to 78,558,970.55, 117,831,185.13 and 37,050,329.12

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Solution

The fourth proportional to 78,558,970.55, 117,831,185.13 and 37,050,329.12 is: 55,572,064.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,558,970.55 : 117,831,185.13 = 37,050,329.12 : x
  2. Step 2: Convert to fraction form
    78,558,970.55/117,831,185.13 = 37,050,329.12/x
  3. Step 3: Cross multiply
    78,558,970.55x = 117,831,185.13 × 37,050,329.12
  4. Step 4: Simplify right side
    78,558,970.55x = 4,365,684,189,666,149.50
  5. Step 5: Solve for x
    x = 4,365,684,189,666,149.50/78,558,970.55
  6. Step 6: Final answer
    x = 55,572,064.64

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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.