Home / 74,889,991.20-112,334,986.80-66,386,935.20

Finding the Fourth Proportional to 74,889,991.20, 112,334,986.80 and 66,386,935.20

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Solution

The fourth proportional to 74,889,991.20, 112,334,986.80 and 66,386,935.20 is: 99,580,402.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,889,991.20 : 112,334,986.80 = 66,386,935.20 : x
  2. Step 2: Convert to fraction form
    74,889,991.20/112,334,986.80 = 66,386,935.20/x
  3. Step 3: Cross multiply
    74,889,991.20x = 112,334,986.80 × 66,386,935.20
  4. Step 4: Simplify right side
    74,889,991.20x = 7,457,575,489,384,455
  5. Step 5: Solve for x
    x = 7,457,575,489,384,455/74,889,991.20
  6. Step 6: Final answer
    x = 99,580,402.80

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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.