Home / 429,981,610.40-644,972,415.60-235,818,000.80

Finding the Fourth Proportional to 429,981,610.40, 644,972,415.60 and 235,818,000.80

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Solution

The fourth proportional to 429,981,610.40, 644,972,415.60 and 235,818,000.80 is: 353,727,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,981,610.40 : 644,972,415.60 = 235,818,000.80 : x
  2. Step 2: Convert to fraction form
    429,981,610.40/644,972,415.60 = 235,818,000.80/x
  3. Step 3: Cross multiply
    429,981,610.40x = 644,972,415.60 × 235,818,000.80
  4. Step 4: Simplify right side
    429,981,610.40x = 152,096,105,617,938,752
  5. Step 5: Solve for x
    x = 152,096,105,617,938,752/429,981,610.40
  6. Step 6: Final answer
    x = 353,727,001.20

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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.