Home / 78,035,126.88-107,687,064-43,227,709.44

Finding the Fourth Proportional to 78,035,126.88, 107,687,064 and 43,227,709.44

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Solution

The fourth proportional to 78,035,126.88, 107,687,064 and 43,227,709.44 is: 59,653,457.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,035,126.88 : 107,687,064 = 43,227,709.44 : x
  2. Step 2: Convert to fraction form
    78,035,126.88/107,687,064 = 43,227,709.44/x
  3. Step 3: Cross multiply
    78,035,126.88x = 107,687,064 × 43,227,709.44
  4. Step 4: Simplify right side
    78,035,126.88x = 4,655,065,113,038,684
  5. Step 5: Solve for x
    x = 4,655,065,113,038,684/78,035,126.88
  6. Step 6: Final answer
    x = 59,653,457.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.