Home / 493,974,885.28-681,575,506.32-285,086,780.32

Finding the Fourth Proportional to 493,974,885.28, 681,575,506.32 and 285,086,780.32

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Solution

The fourth proportional to 493,974,885.28, 681,575,506.32 and 285,086,780.32 is: 393,356,367.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,974,885.28 : 681,575,506.32 = 285,086,780.32 : x
  2. Step 2: Convert to fraction form
    493,974,885.28/681,575,506.32 = 285,086,780.32/x
  3. Step 3: Cross multiply
    493,974,885.28x = 681,575,506.32 × 285,086,780.32
  4. Step 4: Simplify right side
    493,974,885.28x = 194,308,166,641,742,624
  5. Step 5: Solve for x
    x = 194,308,166,641,742,624/493,974,885.28
  6. Step 6: Final answer
    x = 393,356,367.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.