Home / 742,303,459.63-1,113,914,989.94-431,557,326.82

Finding the Fourth Proportional to 742,303,459.63, 1,113,914,989.94 and 431,557,326.82

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Solution

The fourth proportional to 742,303,459.63, 1,113,914,989.94 and 431,557,326.82 is: 647,603,307.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,303,459.63 : 1,113,914,989.94 = 431,557,326.82 : x
  2. Step 2: Convert to fraction form
    742,303,459.63/1,113,914,989.94 = 431,557,326.82/x
  3. Step 3: Cross multiply
    742,303,459.63x = 1,113,914,989.94 × 431,557,326.82
  4. Step 4: Simplify right side
    742,303,459.63x = 480,718,175,363,233,600
  5. Step 5: Solve for x
    x = 480,718,175,363,233,600/742,303,459.63
  6. Step 6: Final answer
    x = 647,603,307.15

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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.