Home / 12,983,852.70-19,475,779.05-5,409,834.30

Finding the Fourth Proportional to 12,983,852.70, 19,475,779.05 and 5,409,834.30

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Solution

The fourth proportional to 12,983,852.70, 19,475,779.05 and 5,409,834.30 is: 8,114,751.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983,852.70 : 19,475,779.05 = 5,409,834.30 : x
  2. Step 2: Convert to fraction form
    12,983,852.70/19,475,779.05 = 5,409,834.30/x
  3. Step 3: Cross multiply
    12,983,852.70x = 19,475,779.05 × 5,409,834.30
  4. Step 4: Simplify right side
    12,983,852.70x = 105,360,737,523,911.42
  5. Step 5: Solve for x
    x = 105,360,737,523,911.42/12,983,852.70
  6. Step 6: Final answer
    x = 8,114,751.45

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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.