Home / 645,151,206.40-967,726,809.60-214,329,702.40

Finding the Fourth Proportional to 645,151,206.40, 967,726,809.60 and 214,329,702.40

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Solution

The fourth proportional to 645,151,206.40, 967,726,809.60 and 214,329,702.40 is: 321,494,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,151,206.40 : 967,726,809.60 = 214,329,702.40 : x
  2. Step 2: Convert to fraction form
    645,151,206.40/967,726,809.60 = 214,329,702.40/x
  3. Step 3: Cross multiply
    645,151,206.40x = 967,726,809.60 × 214,329,702.40
  4. Step 4: Simplify right side
    645,151,206.40x = 207,412,599,106,069,472
  5. Step 5: Solve for x
    x = 207,412,599,106,069,472/645,151,206.40
  6. Step 6: Final answer
    x = 321,494,553.60

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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.