Home / 456,215,639.64-629,589,962.08-258,006,774.40

Finding the Fourth Proportional to 456,215,639.64, 629,589,962.08 and 258,006,774.40

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Solution

The fourth proportional to 456,215,639.64, 629,589,962.08 and 258,006,774.40 is: 356,056,349.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,215,639.64 : 629,589,962.08 = 258,006,774.40 : x
  2. Step 2: Convert to fraction form
    456,215,639.64/629,589,962.08 = 258,006,774.40/x
  3. Step 3: Cross multiply
    456,215,639.64x = 629,589,962.08 × 258,006,774.40
  4. Step 4: Simplify right side
    456,215,639.64x = 162,438,475,310,879,136
  5. Step 5: Solve for x
    x = 162,438,475,310,879,136/456,215,639.64
  6. Step 6: Final answer
    x = 356,056,349.67

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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.