Home / 382,381,023.10-571,394,742.38-287,113,018.06

Finding the Fourth Proportional to 382,381,023.10, 571,394,742.38 and 287,113,018.06

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Solution

The fourth proportional to 382,381,023.10, 571,394,742.38 and 287,113,018.06 is: 429,035,069.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,381,023.10 : 571,394,742.38 = 287,113,018.06 : x
  2. Step 2: Convert to fraction form
    382,381,023.10/571,394,742.38 = 287,113,018.06/x
  3. Step 3: Cross multiply
    382,381,023.10x = 571,394,742.38 × 287,113,018.06
  4. Step 4: Simplify right side
    382,381,023.10x = 164,054,868,988,337,984
  5. Step 5: Solve for x
    x = 164,054,868,988,337,984/382,381,023.10
  6. Step 6: Final answer
    x = 429,035,069.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.