Home / 786,294,333.76-1,085,479,016.16-489,032,397.76

Finding the Fourth Proportional to 786,294,333.76, 1,085,479,016.16 and 489,032,397.76

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Solution

The fourth proportional to 786,294,333.76, 1,085,479,016.16 and 489,032,397.76 is: 675,109,031.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,294,333.76 : 1,085,479,016.16 = 489,032,397.76 : x
  2. Step 2: Convert to fraction form
    786,294,333.76/1,085,479,016.16 = 489,032,397.76/x
  3. Step 3: Cross multiply
    786,294,333.76x = 1,085,479,016.16 × 489,032,397.76
  4. Step 4: Simplify right side
    786,294,333.76x = 530,834,405,990,890,624
  5. Step 5: Solve for x
    x = 530,834,405,990,890,624/786,294,333.76
  6. Step 6: Final answer
    x = 675,109,031.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.