Home / 769,686,876.60-1,062,126,981.48-435,139,397.07

Finding the Fourth Proportional to 769,686,876.60, 1,062,126,981.48 and 435,139,397.07

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Solution

The fourth proportional to 769,686,876.60, 1,062,126,981.48 and 435,139,397.07 is: 600,469,240.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,686,876.60 : 1,062,126,981.48 = 435,139,397.07 : x
  2. Step 2: Convert to fraction form
    769,686,876.60/1,062,126,981.48 = 435,139,397.07/x
  3. Step 3: Cross multiply
    769,686,876.60x = 1,062,126,981.48 × 435,139,397.07
  4. Step 4: Simplify right side
    769,686,876.60x = 462,173,294,332,986,240
  5. Step 5: Solve for x
    x = 462,173,294,332,986,240/769,686,876.60
  6. Step 6: Final answer
    x = 600,469,240.65

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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.