Home / 400,874,867-553,197,907.50-235,873,123.64

Finding the Fourth Proportional to 400,874,867, 553,197,907.50 and 235,873,123.64

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Solution

The fourth proportional to 400,874,867, 553,197,907.50 and 235,873,123.64 is: 325,499,374.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,874,867 : 553,197,907.50 = 235,873,123.64 : x
  2. Step 2: Convert to fraction form
    400,874,867/553,197,907.50 = 235,873,123.64/x
  3. Step 3: Cross multiply
    400,874,867x = 553,197,907.50 × 235,873,123.64
  4. Step 4: Simplify right side
    400,874,867x = 130,484,518,433,136,768
  5. Step 5: Solve for x
    x = 130,484,518,433,136,768/400,874,867
  6. Step 6: Final answer
    x = 325,499,374.43

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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.