Home / 868,345,511.70-1,302,120,136.35-383,421,710.10

Finding the Fourth Proportional to 868,345,511.70, 1,302,120,136.35 and 383,421,710.10

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Solution

The fourth proportional to 868,345,511.70, 1,302,120,136.35 and 383,421,710.10 is: 574,956,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,345,511.70 : 1,302,120,136.35 = 383,421,710.10 : x
  2. Step 2: Convert to fraction form
    868,345,511.70/1,302,120,136.35 = 383,421,710.10/x
  3. Step 3: Cross multiply
    868,345,511.70x = 1,302,120,136.35 × 383,421,710.10
  4. Step 4: Simplify right side
    868,345,511.70x = 499,261,129,434,962,176
  5. Step 5: Solve for x
    x = 499,261,129,434,962,176/868,345,511.70
  6. Step 6: Final answer
    x = 574,956,768.60

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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.