Home / 669,011,851.56-922,864,431.93-621,664,739.46

Finding the Fourth Proportional to 669,011,851.56, 922,864,431.93 and 621,664,739.46

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Solution

The fourth proportional to 669,011,851.56, 922,864,431.93 and 621,664,739.46 is: 857,551,738.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,011,851.56 : 922,864,431.93 = 621,664,739.46 : x
  2. Step 2: Convert to fraction form
    669,011,851.56/922,864,431.93 = 621,664,739.46/x
  3. Step 3: Cross multiply
    669,011,851.56x = 922,864,431.93 × 621,664,739.46
  4. Step 4: Simplify right side
    669,011,851.56x = 573,712,276,632,664,384
  5. Step 5: Solve for x
    x = 573,712,276,632,664,384/669,011,851.56
  6. Step 6: Final answer
    x = 857,551,738.87

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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.