Home / 399,117,631.80-598,172,562.90-353,767,999.80

Finding the Fourth Proportional to 399,117,631.80, 598,172,562.90 and 353,767,999.80

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Solution

The fourth proportional to 399,117,631.80, 598,172,562.90 and 353,767,999.80 is: 530,205,368.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,117,631.80 : 598,172,562.90 = 353,767,999.80 : x
  2. Step 2: Convert to fraction form
    399,117,631.80/598,172,562.90 = 353,767,999.80/x
  3. Step 3: Cross multiply
    399,117,631.80x = 598,172,562.90 × 353,767,999.80
  4. Step 4: Simplify right side
    399,117,631.80x = 211,614,311,112,372,672
  5. Step 5: Solve for x
    x = 211,614,311,112,372,672/399,117,631.80
  6. Step 6: Final answer
    x = 530,205,368.67

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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.