Home / 431,115,383.90-646,673,075.85-124,417,502.30

Finding the Fourth Proportional to 431,115,383.90, 646,673,075.85 and 124,417,502.30

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Solution

The fourth proportional to 431,115,383.90, 646,673,075.85 and 124,417,502.30 is: 186,626,253.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,115,383.90 : 646,673,075.85 = 124,417,502.30 : x
  2. Step 2: Convert to fraction form
    431,115,383.90/646,673,075.85 = 124,417,502.30/x
  3. Step 3: Cross multiply
    431,115,383.90x = 646,673,075.85 × 124,417,502.30
  4. Step 4: Simplify right side
    431,115,383.90x = 80,457,448,901,915,456
  5. Step 5: Solve for x
    x = 80,457,448,901,915,456/431,115,383.90
  6. Step 6: Final answer
    x = 186,626,253.45

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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.