Home / 315,022,131.36-434,730,557.60-173,893,389.12

Finding the Fourth Proportional to 315,022,131.36, 434,730,557.60 and 173,893,389.12

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Solution

The fourth proportional to 315,022,131.36, 434,730,557.60 and 173,893,389.12 is: 239,972,886.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,022,131.36 : 434,730,557.60 = 173,893,389.12 : x
  2. Step 2: Convert to fraction form
    315,022,131.36/434,730,557.60 = 173,893,389.12/x
  3. Step 3: Cross multiply
    315,022,131.36x = 434,730,557.60 × 173,893,389.12
  4. Step 4: Simplify right side
    315,022,131.36x = 75,596,770,015,091,376
  5. Step 5: Solve for x
    x = 75,596,770,015,091,376/315,022,131.36
  6. Step 6: Final answer
    x = 239,972,886.00

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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.