Home / 778,286,868,849.60-1,167,606,340,481-420,131,155,448.04

Finding the Fourth Proportional to 778,286,868,849.60, 1,167,606,340,481 and 420,131,155,448.04

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Solution

The fourth proportional to 778,286,868,849.60, 1,167,606,340,481 and 420,131,155,448.04 is: 630,291,760,748.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,286,868,849.60 : 1,167,606,340,481 = 420,131,155,448.04 : x
  2. Step 2: Convert to fraction form
    778,286,868,849.60/1,167,606,340,481 = 420,131,155,448.04/x
  3. Step 3: Cross multiply
    778,286,868,849.60x = 1,167,606,340,481 × 420,131,155,448.04
  4. Step 4: Simplify right side
    778,286,868,849.60x = 490,547,800,934,740,085,702,656
  5. Step 5: Solve for x
    x = 490,547,800,934,740,085,702,656/778,286,868,849.60
  6. Step 6: Final answer
    x = 630,291,760,748.61

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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.