Home / 711,042,946.26-1,065,596,013.60-400,298,779.86

Finding the Fourth Proportional to 711,042,946.26, 1,065,596,013.60 and 400,298,779.86

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Solution

The fourth proportional to 711,042,946.26, 1,065,596,013.60 and 400,298,779.86 is: 599,902,982.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,042,946.26 : 1,065,596,013.60 = 400,298,779.86 : x
  2. Step 2: Convert to fraction form
    711,042,946.26/1,065,596,013.60 = 400,298,779.86/x
  3. Step 3: Cross multiply
    711,042,946.26x = 1,065,596,013.60 × 400,298,779.86
  4. Step 4: Simplify right side
    711,042,946.26x = 426,556,784,067,760,000
  5. Step 5: Solve for x
    x = 426,556,784,067,760,000/711,042,946.26
  6. Step 6: Final answer
    x = 599,902,982.39

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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.