Home / 310,817,688.72-428,917,165.83-171,585,460.86

Finding the Fourth Proportional to 310,817,688.72, 428,917,165.83 and 171,585,460.86

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Solution

The fourth proportional to 310,817,688.72, 428,917,165.83 and 171,585,460.86 is: 236,781,728.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,817,688.72 : 428,917,165.83 = 171,585,460.86 : x
  2. Step 2: Convert to fraction form
    310,817,688.72/428,917,165.83 = 171,585,460.86/x
  3. Step 3: Cross multiply
    310,817,688.72x = 428,917,165.83 × 171,585,460.86
  4. Step 4: Simplify right side
    310,817,688.72x = 73,595,949,569,705,600
  5. Step 5: Solve for x
    x = 73,595,949,569,705,600/310,817,688.72
  6. Step 6: Final answer
    x = 236,781,728.46

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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.