Home / 208,715,434.80-312,774,553.80-153,698,679.60

Finding the Fourth Proportional to 208,715,434.80, 312,774,553.80 and 153,698,679.60

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Solution

The fourth proportional to 208,715,434.80, 312,774,553.80 and 153,698,679.60 is: 230,328,130.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,715,434.80 : 312,774,553.80 = 153,698,679.60 : x
  2. Step 2: Convert to fraction form
    208,715,434.80/312,774,553.80 = 153,698,679.60/x
  3. Step 3: Cross multiply
    208,715,434.80x = 312,774,553.80 × 153,698,679.60
  4. Step 4: Simplify right side
    208,715,434.80x = 48,073,035,931,539,160
  5. Step 5: Solve for x
    x = 48,073,035,931,539,160/208,715,434.80
  6. Step 6: Final answer
    x = 230,328,130.63

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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.