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Finding the Fourth Proportional to 719,592,804.84, 993,089,457.26 and 397,713,847.41

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Solution

The fourth proportional to 719,592,804.84, 993,089,457.26 and 397,713,847.41 is: 548,873,510.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,592,804.84 : 993,089,457.26 = 397,713,847.41 : x
  2. Step 2: Convert to fraction form
    719,592,804.84/993,089,457.26 = 397,713,847.41/x
  3. Step 3: Cross multiply
    719,592,804.84x = 993,089,457.26 × 397,713,847.41
  4. Step 4: Simplify right side
    719,592,804.84x = 394,965,428,869,817,472
  5. Step 5: Solve for x
    x = 394,965,428,869,817,472/719,592,804.84
  6. Step 6: Final answer
    x = 548,873,510.43

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1.5x scale

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.