Home / 708,825,518,000.12-978,179,262,652.44-388,041,353,108.10

Finding the Fourth Proportional to 708,825,518,000.12, 978,179,262,652.44 and 388,041,353,108.10

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Solution

The fourth proportional to 708,825,518,000.12, 978,179,262,652.44 and 388,041,353,108.10 is: 535,497,093,463.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,825,518,000.12 : 978,179,262,652.44 = 388,041,353,108.10 : x
  2. Step 2: Convert to fraction form
    708,825,518,000.12/978,179,262,652.44 = 388,041,353,108.10/x
  3. Step 3: Cross multiply
    708,825,518,000.12x = 978,179,262,652.44 × 388,041,353,108.10
  4. Step 4: Simplify right side
    708,825,518,000.12x = 379,574,004,661,936,329,850,880
  5. Step 5: Solve for x
    x = 379,574,004,661,936,329,850,880/708,825,518,000.12
  6. Step 6: Final answer
    x = 535,497,093,463.66

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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.