Home / 672,840,105.40-1,009,711,554.90-236,139,945.40

Finding the Fourth Proportional to 672,840,105.40, 1,009,711,554.90 and 236,139,945.40

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Solution

The fourth proportional to 672,840,105.40, 1,009,711,554.90 and 236,139,945.40 is: 354,368,340.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,840,105.40 : 1,009,711,554.90 = 236,139,945.40 : x
  2. Step 2: Convert to fraction form
    672,840,105.40/1,009,711,554.90 = 236,139,945.40/x
  3. Step 3: Cross multiply
    672,840,105.40x = 1,009,711,554.90 × 236,139,945.40
  4. Step 4: Simplify right side
    672,840,105.40x = 238,433,231,443,835,104
  5. Step 5: Solve for x
    x = 238,433,231,443,835,104/672,840,105.40
  6. Step 6: Final answer
    x = 354,368,340.31

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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.