Home / 403,704,742.76-557,112,768.90-218,065,759.40

Finding the Fourth Proportional to 403,704,742.76, 557,112,768.90 and 218,065,759.40

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Solution

The fourth proportional to 403,704,742.76, 557,112,768.90 and 218,065,759.40 is: 300,930,868.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,742.76 : 557,112,768.90 = 218,065,759.40 : x
  2. Step 2: Convert to fraction form
    403,704,742.76/557,112,768.90 = 218,065,759.40/x
  3. Step 3: Cross multiply
    403,704,742.76x = 557,112,768.90 × 218,065,759.40
  4. Step 4: Simplify right side
    403,704,742.76x = 121,487,219,021,615,200
  5. Step 5: Solve for x
    x = 121,487,219,021,615,200/403,704,742.76
  6. Step 6: Final answer
    x = 300,930,868.91

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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.