Home / 876,630,538.79-1,209,413,562.63-500,308,036.01

Finding the Fourth Proportional to 876,630,538.79, 1,209,413,562.63 and 500,308,036.01

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Solution

The fourth proportional to 876,630,538.79, 1,209,413,562.63 and 500,308,036.01 is: 690,232,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,630,538.79 : 1,209,413,562.63 = 500,308,036.01 : x
  2. Step 2: Convert to fraction form
    876,630,538.79/1,209,413,562.63 = 500,308,036.01/x
  3. Step 3: Cross multiply
    876,630,538.79x = 1,209,413,562.63 × 500,308,036.01
  4. Step 4: Simplify right side
    876,630,538.79x = 605,079,324,243,272,448
  5. Step 5: Solve for x
    x = 605,079,324,243,272,448/876,630,538.79
  6. Step 6: Final answer
    x = 690,232,997.22

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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.