Home / 55,539,733.74-76,642,713.27-30,421,440.78

Finding the Fourth Proportional to 55,539,733.74, 76,642,713.27 and 30,421,440.78

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Solution

The fourth proportional to 55,539,733.74, 76,642,713.27 and 30,421,440.78 is: 41,980,427.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,539,733.74 : 76,642,713.27 = 30,421,440.78 : x
  2. Step 2: Convert to fraction form
    55,539,733.74/76,642,713.27 = 30,421,440.78/x
  3. Step 3: Cross multiply
    55,539,733.74x = 76,642,713.27 × 30,421,440.78
  4. Step 4: Simplify right side
    55,539,733.74x = 2,331,581,762,961,825
  5. Step 5: Solve for x
    x = 2,331,581,762,961,825/55,539,733.74
  6. Step 6: Final answer
    x = 41,980,427.45

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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.