Home / 915,129,537.83-1,245,983,796.71-912,223,884.16

Finding the Fourth Proportional to 915,129,537.83, 1,245,983,796.71 and 912,223,884.16

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Solution

The fourth proportional to 915,129,537.83, 1,245,983,796.71 and 912,223,884.16 is: 1,242,027,638.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,129,537.83 : 1,245,983,796.71 = 912,223,884.16 : x
  2. Step 2: Convert to fraction form
    915,129,537.83/1,245,983,796.71 = 912,223,884.16/x
  3. Step 3: Cross multiply
    915,129,537.83x = 1,245,983,796.71 × 912,223,884.16
  4. Step 4: Simplify right side
    915,129,537.83x = 1,136,616,178,635,682,944
  5. Step 5: Solve for x
    x = 1,136,616,178,635,682,944/915,129,537.83
  6. Step 6: Final answer
    x = 1,242,027,638.33

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.