Home / 630,848,000.80-946,272,001.20-447,181,991.20

Finding the Fourth Proportional to 630,848,000.80, 946,272,001.20 and 447,181,991.20

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Solution

The fourth proportional to 630,848,000.80, 946,272,001.20 and 447,181,991.20 is: 670,772,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,848,000.80 : 946,272,001.20 = 447,181,991.20 : x
  2. Step 2: Convert to fraction form
    630,848,000.80/946,272,001.20 = 447,181,991.20/x
  3. Step 3: Cross multiply
    630,848,000.80x = 946,272,001.20 × 447,181,991.20
  4. Step 4: Simplify right side
    630,848,000.80x = 423,155,797,713,424,768
  5. Step 5: Solve for x
    x = 423,155,797,713,424,768/630,848,000.80
  6. Step 6: Final answer
    x = 670,772,986.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.