Home / 127,104,572.34-175,399,145.01-72,099,247.86

Finding the Fourth Proportional to 127,104,572.34, 175,399,145.01 and 72,099,247.86

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Solution

The fourth proportional to 127,104,572.34, 175,399,145.01 and 72,099,247.86 is: 99,494,032.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,104,572.34 : 175,399,145.01 = 72,099,247.86 : x
  2. Step 2: Convert to fraction form
    127,104,572.34/175,399,145.01 = 72,099,247.86/x
  3. Step 3: Cross multiply
    127,104,572.34x = 175,399,145.01 × 72,099,247.86
  4. Step 4: Simplify right side
    127,104,572.34x = 12,646,146,430,508,072
  5. Step 5: Solve for x
    x = 12,646,146,430,508,072/127,104,572.34
  6. Step 6: Final answer
    x = 99,494,032.34

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1.5x scale

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.