Home / 290,012,795.98-435,007,396.47-71,657,639.40

Finding the Fourth Proportional to 290,012,795.98, 435,007,396.47 and 71,657,639.40

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Solution

The fourth proportional to 290,012,795.98, 435,007,396.47 and 71,657,639.40 is: 107,483,544.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,012,795.98 : 435,007,396.47 = 71,657,639.40 : x
  2. Step 2: Convert to fraction form
    290,012,795.98/435,007,396.47 = 71,657,639.40/x
  3. Step 3: Cross multiply
    290,012,795.98x = 435,007,396.47 × 71,657,639.40
  4. Step 4: Simplify right side
    290,012,795.98x = 31,171,603,152,580,096
  5. Step 5: Solve for x
    x = 31,171,603,152,580,096/290,012,795.98
  6. Step 6: Final answer
    x = 107,483,544.12

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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.