Home / 12,547,763.80-18,821,645.70-9,709,912.60

Finding the Fourth Proportional to 12,547,763.80, 18,821,645.70 and 9,709,912.60

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Solution

The fourth proportional to 12,547,763.80, 18,821,645.70 and 9,709,912.60 is: 14,564,868.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547,763.80 : 18,821,645.70 = 9,709,912.60 : x
  2. Step 2: Convert to fraction form
    12,547,763.80/18,821,645.70 = 9,709,912.60/x
  3. Step 3: Cross multiply
    12,547,763.80x = 18,821,645.70 × 9,709,912.60
  4. Step 4: Simplify right side
    12,547,763.80x = 182,756,534,735,165.81
  5. Step 5: Solve for x
    x = 182,756,534,735,165.81/12,547,763.80
  6. Step 6: Final answer
    x = 14,564,868.90

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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.