Home / 21,299,509.74-31,949,263.01-5,125,462.72

Finding the Fourth Proportional to 21,299,509.74, 31,949,263.01 and 5,125,462.72

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Solution

The fourth proportional to 21,299,509.74, 31,949,263.01 and 5,125,462.72 is: 7,688,193.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,299,509.74 : 31,949,263.01 = 5,125,462.72 : x
  2. Step 2: Convert to fraction form
    21,299,509.74/31,949,263.01 = 5,125,462.72/x
  3. Step 3: Cross multiply
    21,299,509.74x = 31,949,263.01 × 5,125,462.72
  4. Step 4: Simplify right side
    21,299,509.74x = 163,754,756,422,170.50
  5. Step 5: Solve for x
    x = 163,754,756,422,170.50/21,299,509.74
  6. Step 6: Final answer
    x = 7,688,193.69

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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.