Home / 208,839,457.80-312,960,588.30-153,822,702.60

Finding the Fourth Proportional to 208,839,457.80, 312,960,588.30 and 153,822,702.60

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Solution

The fourth proportional to 208,839,457.80, 312,960,588.30 and 153,822,702.60 is: 230,514,118.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,839,457.80 : 312,960,588.30 = 153,822,702.60 : x
  2. Step 2: Convert to fraction form
    208,839,457.80/312,960,588.30 = 153,822,702.60/x
  3. Step 3: Cross multiply
    208,839,457.80x = 312,960,588.30 × 153,822,702.60
  4. Step 4: Simplify right side
    208,839,457.80x = 48,140,443,499,591,936
  5. Step 5: Solve for x
    x = 48,140,443,499,591,936/208,839,457.80
  6. Step 6: Final answer
    x = 230,514,118.39

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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.