Home / 1,180,814,337.87-1,771,228,128.09-393,865,830.27

Finding the Fourth Proportional to 1,180,814,337.87, 1,771,228,128.09 and 393,865,830.27

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Solution

The fourth proportional to 1,180,814,337.87, 1,771,228,128.09 and 393,865,830.27 is: 590,800,953.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,814,337.87 : 1,771,228,128.09 = 393,865,830.27 : x
  2. Step 2: Convert to fraction form
    1,180,814,337.87/1,771,228,128.09 = 393,865,830.27/x
  3. Step 3: Cross multiply
    1,180,814,337.87x = 1,771,228,128.09 × 393,865,830.27
  4. Step 4: Simplify right side
    1,180,814,337.87x = 697,626,237,267,745,664
  5. Step 5: Solve for x
    x = 697,626,237,267,745,664/1,180,814,337.87
  6. Step 6: Final answer
    x = 590,800,953.96

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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.