Home / 742,303,460.39-1,113,914,991.06-431,557,327.58

Finding the Fourth Proportional to 742,303,460.39, 1,113,914,991.06 and 431,557,327.58

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Solution

The fourth proportional to 742,303,460.39, 1,113,914,991.06 and 431,557,327.58 is: 647,603,308.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,303,460.39 : 1,113,914,991.06 = 431,557,327.58 : x
  2. Step 2: Convert to fraction form
    742,303,460.39/1,113,914,991.06 = 431,557,327.58/x
  3. Step 3: Cross multiply
    742,303,460.39x = 1,113,914,991.06 × 431,557,327.58
  4. Step 4: Simplify right side
    742,303,460.39x = 480,718,176,687,583,552
  5. Step 5: Solve for x
    x = 480,718,176,687,583,552/742,303,460.39
  6. Step 6: Final answer
    x = 647,603,308.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.