Home / 420,677,580.48-631,029,225.95-144,324,918.16

Finding the Fourth Proportional to 420,677,580.48, 631,029,225.95 and 144,324,918.16

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Solution

The fourth proportional to 420,677,580.48, 631,029,225.95 and 144,324,918.16 is: 216,491,787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,677,580.48 : 631,029,225.95 = 144,324,918.16 : x
  2. Step 2: Convert to fraction form
    420,677,580.48/631,029,225.95 = 144,324,918.16/x
  3. Step 3: Cross multiply
    420,677,580.48x = 631,029,225.95 × 144,324,918.16
  4. Step 4: Simplify right side
    420,677,580.48x = 91,073,241,393,192,496
  5. Step 5: Solve for x
    x = 91,073,241,393,192,496/420,677,580.48
  6. Step 6: Final answer
    x = 216,491,787.58

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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.