Home / 511,956,035.19-706,498,871.37-288,984,650.31

Finding the Fourth Proportional to 511,956,035.19, 706,498,871.37 and 288,984,650.31

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Solution

The fourth proportional to 511,956,035.19, 706,498,871.37 and 288,984,650.31 is: 398,798,559.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,956,035.19 : 706,498,871.37 = 288,984,650.31 : x
  2. Step 2: Convert to fraction form
    511,956,035.19/706,498,871.37 = 288,984,650.31/x
  3. Step 3: Cross multiply
    511,956,035.19x = 706,498,871.37 × 288,984,650.31
  4. Step 4: Simplify right side
    511,956,035.19x = 204,167,329,282,291,712
  5. Step 5: Solve for x
    x = 204,167,329,282,291,712/511,956,035.19
  6. Step 6: Final answer
    x = 398,798,559.35

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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.