Home / 329,898,636,807.84-494,645,437,087.20-128,204,869,355.28

Finding the Fourth Proportional to 329,898,636,807.84, 494,645,437,087.20 and 128,204,869,355.28

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Solution

The fourth proportional to 329,898,636,807.84, 494,645,437,087.20 and 128,204,869,355.28 is: 192,228,601,647.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,898,636,807.84 : 494,645,437,087.20 = 128,204,869,355.28 : x
  2. Step 2: Convert to fraction form
    329,898,636,807.84/494,645,437,087.20 = 128,204,869,355.28/x
  3. Step 3: Cross multiply
    329,898,636,807.84x = 494,645,437,087.20 × 128,204,869,355.28
  4. Step 4: Simplify right side
    329,898,636,807.84x = 63,415,953,638,949,845,467,136
  5. Step 5: Solve for x
    x = 63,415,953,638,949,845,467,136/329,898,636,807.84
  6. Step 6: Final answer
    x = 192,228,601,647.39

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1.5x scale

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.