Home / 421,787,394-632,782,103.67-176,007,306.78

Finding the Fourth Proportional to 421,787,394, 632,782,103.67 and 176,007,306.78

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Solution

The fourth proportional to 421,787,394, 632,782,103.67 and 176,007,306.78 is: 264,053,111.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,787,394 : 632,782,103.67 = 176,007,306.78 : x
  2. Step 2: Convert to fraction form
    421,787,394/632,782,103.67 = 176,007,306.78/x
  3. Step 3: Cross multiply
    421,787,394x = 632,782,103.67 × 176,007,306.78
  4. Step 4: Simplify right side
    421,787,394x = 111,374,273,845,539,440
  5. Step 5: Solve for x
    x = 111,374,273,845,539,440/421,787,394
  6. Step 6: Final answer
    x = 264,053,111.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.