Home / 1,018,562,503.38-1,405,616,269.24-554,988,487.38

Finding the Fourth Proportional to 1,018,562,503.38, 1,405,616,269.24 and 554,988,487.38

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Solution

The fourth proportional to 1,018,562,503.38, 1,405,616,269.24 and 554,988,487.38 is: 765,884,120.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,562,503.38 : 1,405,616,269.24 = 554,988,487.38 : x
  2. Step 2: Convert to fraction form
    1,018,562,503.38/1,405,616,269.24 = 554,988,487.38/x
  3. Step 3: Cross multiply
    1,018,562,503.38x = 1,405,616,269.24 × 554,988,487.38
  4. Step 4: Simplify right side
    1,018,562,503.38x = 780,100,847,102,226,432
  5. Step 5: Solve for x
    x = 780,100,847,102,226,432/1,018,562,503.38
  6. Step 6: Final answer
    x = 765,884,120.53

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Double scale
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1.5x scale

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.