Home / 282,406,858.21-389,731,454.81-156,961,555.57

Finding the Fourth Proportional to 282,406,858.21, 389,731,454.81 and 156,961,555.57

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Solution

The fourth proportional to 282,406,858.21, 389,731,454.81 and 156,961,555.57 is: 216,612,499.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,406,858.21 : 389,731,454.81 = 156,961,555.57 : x
  2. Step 2: Convert to fraction form
    282,406,858.21/389,731,454.81 = 156,961,555.57/x
  3. Step 3: Cross multiply
    282,406,858.21x = 389,731,454.81 × 156,961,555.57
  4. Step 4: Simplify right side
    282,406,858.21x = 61,172,855,401,536,760
  5. Step 5: Solve for x
    x = 61,172,855,401,536,760/282,406,858.21
  6. Step 6: Final answer
    x = 216,612,499.39

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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.