Home / 312,804,930.70-469,065,678.45-118,651,818.70

Finding the Fourth Proportional to 312,804,930.70, 469,065,678.45 and 118,651,818.70

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Solution

The fourth proportional to 312,804,930.70, 469,065,678.45 and 118,651,818.70 is: 177,923,972.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,804,930.70 : 469,065,678.45 = 118,651,818.70 : x
  2. Step 2: Convert to fraction form
    312,804,930.70/469,065,678.45 = 118,651,818.70/x
  3. Step 3: Cross multiply
    312,804,930.70x = 469,065,678.45 × 118,651,818.70
  4. Step 4: Simplify right side
    312,804,930.70x = 55,655,495,837,841,896
  5. Step 5: Solve for x
    x = 55,655,495,837,841,896/312,804,930.70
  6. Step 6: Final answer
    x = 177,923,972.34

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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.