Home / 382,205,875.80-573,308,813.70-209,616,000.60

Finding the Fourth Proportional to 382,205,875.80, 573,308,813.70 and 209,616,000.60

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Solution

The fourth proportional to 382,205,875.80, 573,308,813.70 and 209,616,000.60 is: 314,424,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,205,875.80 : 573,308,813.70 = 209,616,000.60 : x
  2. Step 2: Convert to fraction form
    382,205,875.80/573,308,813.70 = 209,616,000.60/x
  3. Step 3: Cross multiply
    382,205,875.80x = 573,308,813.70 × 209,616,000.60
  4. Step 4: Simplify right side
    382,205,875.80x = 120,174,700,636,524,496
  5. Step 5: Solve for x
    x = 120,174,700,636,524,496/382,205,875.80
  6. Step 6: Final answer
    x = 314,424,000.90

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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.