Home / 876,630,536.29-1,209,413,559.18-500,308,033.51

Finding the Fourth Proportional to 876,630,536.29, 1,209,413,559.18 and 500,308,033.51

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Solution

The fourth proportional to 876,630,536.29, 1,209,413,559.18 and 500,308,033.51 is: 690,232,993.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,630,536.29 : 1,209,413,559.18 = 500,308,033.51 : x
  2. Step 2: Convert to fraction form
    876,630,536.29/1,209,413,559.18 = 500,308,033.51/x
  3. Step 3: Cross multiply
    876,630,536.29x = 1,209,413,559.18 × 500,308,033.51
  4. Step 4: Simplify right side
    876,630,536.29x = 605,079,319,493,675,776
  5. Step 5: Solve for x
    x = 605,079,319,493,675,776/876,630,536.29
  6. Step 6: Final answer
    x = 690,232,993.77

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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.