Home / 405,522,038.94-559,631,417.58-229,336,380.96

Finding the Fourth Proportional to 405,522,038.94, 559,631,417.58 and 229,336,380.96

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Solution

The fourth proportional to 405,522,038.94, 559,631,417.58 and 229,336,380.96 is: 316,490,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,522,038.94 : 559,631,417.58 = 229,336,380.96 : x
  2. Step 2: Convert to fraction form
    405,522,038.94/559,631,417.58 = 229,336,380.96/x
  3. Step 3: Cross multiply
    405,522,038.94x = 559,631,417.58 × 229,336,380.96
  4. Step 4: Simplify right side
    405,522,038.94x = 128,343,843,979,311,728
  5. Step 5: Solve for x
    x = 128,343,843,979,311,728/405,522,038.94
  6. Step 6: Final answer
    x = 316,490,428.77

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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.