Home / 66,389,528.81-91,617,549.76-38,887,457.06

Finding the Fourth Proportional to 66,389,528.81, 91,617,549.76 and 38,887,457.06

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Solution

The fourth proportional to 66,389,528.81, 91,617,549.76 and 38,887,457.06 is: 53,664,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,389,528.81 : 91,617,549.76 = 38,887,457.06 : x
  2. Step 2: Convert to fraction form
    66,389,528.81/91,617,549.76 = 38,887,457.06/x
  3. Step 3: Cross multiply
    66,389,528.81x = 91,617,549.76 × 38,887,457.06
  4. Step 4: Simplify right side
    66,389,528.81x = 3,562,773,532,512,066.50
  5. Step 5: Solve for x
    x = 3,562,773,532,512,066.50/66,389,528.81
  6. Step 6: Final answer
    x = 53,664,690.75

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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.