Home / 152,004,675.81-209,766,761.72-82,390,103.85

Finding the Fourth Proportional to 152,004,675.81, 209,766,761.72 and 82,390,103.85

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Solution

The fourth proportional to 152,004,675.81, 209,766,761.72 and 82,390,103.85 is: 113,698,510.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,004,675.81 : 209,766,761.72 = 82,390,103.85 : x
  2. Step 2: Convert to fraction form
    152,004,675.81/209,766,761.72 = 82,390,103.85/x
  3. Step 3: Cross multiply
    152,004,675.81x = 209,766,761.72 × 82,390,103.85
  4. Step 4: Simplify right side
    152,004,675.81x = 17,282,705,281,977,054
  5. Step 5: Solve for x
    x = 17,282,705,281,977,054/152,004,675.81
  6. Step 6: Final answer
    x = 113,698,510.85

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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.