Home / 156,760,015.52-216,355,554.24-90,720,721.28

Finding the Fourth Proportional to 156,760,015.52, 216,355,554.24 and 90,720,721.28

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Solution

The fourth proportional to 156,760,015.52, 216,355,554.24 and 90,720,721.28 is: 125,210,066.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,760,015.52 : 216,355,554.24 = 90,720,721.28 : x
  2. Step 2: Convert to fraction form
    156,760,015.52/216,355,554.24 = 90,720,721.28/x
  3. Step 3: Cross multiply
    156,760,015.52x = 216,355,554.24 × 90,720,721.28
  4. Step 4: Simplify right side
    156,760,015.52x = 19,627,931,933,586,964
  5. Step 5: Solve for x
    x = 19,627,931,933,586,964/156,760,015.52
  6. Step 6: Final answer
    x = 125,210,066.28

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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.