Home / 190,457,768.84-285,723,425.10-81,281,346.44

Finding the Fourth Proportional to 190,457,768.84, 285,723,425.10 and 81,281,346.44

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Solution

The fourth proportional to 190,457,768.84, 285,723,425.10 and 81,281,346.44 is: 121,937,712.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,457,768.84 : 285,723,425.10 = 81,281,346.44 : x
  2. Step 2: Convert to fraction form
    190,457,768.84/285,723,425.10 = 81,281,346.44/x
  3. Step 3: Cross multiply
    190,457,768.84x = 285,723,425.10 × 81,281,346.44
  4. Step 4: Simplify right side
    190,457,768.84x = 23,223,984,701,576,492
  5. Step 5: Solve for x
    x = 23,223,984,701,576,492/190,457,768.84
  6. Step 6: Final answer
    x = 121,937,712.72

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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.