Home / 66,389,539.59-91,617,564.59-38,887,467.84

Finding the Fourth Proportional to 66,389,539.59, 91,617,564.59 and 38,887,467.84

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Solution

The fourth proportional to 66,389,539.59, 91,617,564.59 and 38,887,467.84 is: 53,664,705.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,389,539.59 : 91,617,564.59 = 38,887,467.84 : x
  2. Step 2: Convert to fraction form
    66,389,539.59/91,617,564.59 = 38,887,467.84/x
  3. Step 3: Cross multiply
    66,389,539.59x = 91,617,564.59 × 38,887,467.84
  4. Step 4: Simplify right side
    66,389,539.59x = 3,562,775,096,572,748.50
  5. Step 5: Solve for x
    x = 3,562,775,096,572,748.50/66,389,539.59
  6. Step 6: Final answer
    x = 53,664,705.59

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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.