Home / 876,630,537.79-1,209,413,561.25-500,308,035.01

Finding the Fourth Proportional to 876,630,537.79, 1,209,413,561.25 and 500,308,035.01

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Solution

The fourth proportional to 876,630,537.79, 1,209,413,561.25 and 500,308,035.01 is: 690,232,995.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,630,537.79 : 1,209,413,561.25 = 500,308,035.01 : x
  2. Step 2: Convert to fraction form
    876,630,537.79/1,209,413,561.25 = 500,308,035.01/x
  3. Step 3: Cross multiply
    876,630,537.79x = 1,209,413,561.25 × 500,308,035.01
  4. Step 4: Simplify right side
    876,630,537.79x = 605,079,322,343,433,728
  5. Step 5: Solve for x
    x = 605,079,322,343,433,728/876,630,537.79
  6. Step 6: Final answer
    x = 690,232,995.84

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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.