Home / 1,409,666,919.10-2,114,500,378.65-858,668,890.30

Finding the Fourth Proportional to 1,409,666,919.10, 2,114,500,378.65 and 858,668,890.30

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Solution

The fourth proportional to 1,409,666,919.10, 2,114,500,378.65 and 858,668,890.30 is: 1,288,003,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,666,919.10 : 2,114,500,378.65 = 858,668,890.30 : x
  2. Step 2: Convert to fraction form
    1,409,666,919.10/2,114,500,378.65 = 858,668,890.30/x
  3. Step 3: Cross multiply
    1,409,666,919.10x = 2,114,500,378.65 × 858,668,890.30
  4. Step 4: Simplify right side
    1,409,666,919.10x = 1,815,655,693,674,325,248
  5. Step 5: Solve for x
    x = 1,815,655,693,674,325,248/1,409,666,919.10
  6. Step 6: Final answer
    x = 1,288,003,335.45

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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.