Home / 688,517,178-1,032,775,135.98-215,819,621.16

Finding the Fourth Proportional to 688,517,178, 1,032,775,135.98 and 215,819,621.16

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Solution

The fourth proportional to 688,517,178, 1,032,775,135.98 and 215,819,621.16 is: 323,729,233.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,517,178 : 1,032,775,135.98 = 215,819,621.16 : x
  2. Step 2: Convert to fraction form
    688,517,178/1,032,775,135.98 = 215,819,621.16/x
  3. Step 3: Cross multiply
    688,517,178x = 1,032,775,135.98 × 215,819,621.16
  4. Step 4: Simplify right side
    688,517,178x = 222,893,138,590,671,072
  5. Step 5: Solve for x
    x = 222,893,138,590,671,072/688,517,178
  6. Step 6: Final answer
    x = 323,729,233.94

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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.