Home / 1,210,505,537.40-1,811,931,930.90-866,131,769.40

Finding the Fourth Proportional to 1,210,505,537.40, 1,811,931,930.90 and 866,131,769.40

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Solution

The fourth proportional to 1,210,505,537.40, 1,811,931,930.90 and 866,131,769.40 is: 1,296,459,835.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,505,537.40 : 1,811,931,930.90 = 866,131,769.40 : x
  2. Step 2: Convert to fraction form
    1,210,505,537.40/1,811,931,930.90 = 866,131,769.40/x
  3. Step 3: Cross multiply
    1,210,505,537.40x = 1,811,931,930.90 × 866,131,769.40
  4. Step 4: Simplify right side
    1,210,505,537.40x = 1,569,371,809,342,775,552
  5. Step 5: Solve for x
    x = 1,569,371,809,342,775,552/1,210,505,537.40
  6. Step 6: Final answer
    x = 1,296,459,835.05

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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.