Home / 424,622,085.45-636,636,996.77-188,142,988.43

Finding the Fourth Proportional to 424,622,085.45, 636,636,996.77 and 188,142,988.43

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Solution

The fourth proportional to 424,622,085.45, 636,636,996.77 and 188,142,988.43 is: 282,083,271.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,622,085.45 : 636,636,996.77 = 188,142,988.43 : x
  2. Step 2: Convert to fraction form
    424,622,085.45/636,636,996.77 = 188,142,988.43/x
  3. Step 3: Cross multiply
    424,622,085.45x = 636,636,996.77 × 188,142,988.43
  4. Step 4: Simplify right side
    424,622,085.45x = 119,778,787,113,284,160
  5. Step 5: Solve for x
    x = 119,778,787,113,284,160/424,622,085.45
  6. Step 6: Final answer
    x = 282,083,271.73

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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.