Home / 1,281,823,129,758.30-1,922,326,474,543.90-421,097,508,110.94

Finding the Fourth Proportional to 1,281,823,129,758.30, 1,922,326,474,543.90 and 421,097,508,110.94

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Solution

The fourth proportional to 1,281,823,129,758.30, 1,922,326,474,543.90 and 421,097,508,110.94 is: 631,512,155,938.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,823,129,758.30 : 1,922,326,474,543.90 = 421,097,508,110.94 : x
  2. Step 2: Convert to fraction form
    1,281,823,129,758.30/1,922,326,474,543.90 = 421,097,508,110.94/x
  3. Step 3: Cross multiply
    1,281,823,129,758.30x = 1,922,326,474,543.90 × 421,097,508,110.94
  4. Step 4: Simplify right side
    1,281,823,129,758.30x = 809,486,888,206,124,607,078,400
  5. Step 5: Solve for x
    x = 809,486,888,206,124,607,078,400/1,281,823,129,758.30
  6. Step 6: Final answer
    x = 631,512,155,938.99

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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.