Home / 702,041,474.20-968,847,688.45-388,775,688.17

Finding the Fourth Proportional to 702,041,474.20, 968,847,688.45 and 388,775,688.17

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Solution

The fourth proportional to 702,041,474.20, 968,847,688.45 and 388,775,688.17 is: 536,527,314.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,041,474.20 : 968,847,688.45 = 388,775,688.17 : x
  2. Step 2: Convert to fraction form
    702,041,474.20/968,847,688.45 = 388,775,688.17/x
  3. Step 3: Cross multiply
    702,041,474.20x = 968,847,688.45 × 388,775,688.17
  4. Step 4: Simplify right side
    702,041,474.20x = 376,664,426,810,149,184
  5. Step 5: Solve for x
    x = 376,664,426,810,149,184/702,041,474.20
  6. Step 6: Final answer
    x = 536,527,314.49

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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.