Home / 21,013,441.71-31,490,533.50-9,922,679.49

Finding the Fourth Proportional to 21,013,441.71, 31,490,533.50 and 9,922,679.49

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Solution

The fourth proportional to 21,013,441.71, 31,490,533.50 and 9,922,679.49 is: 14,870,028.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,013,441.71 : 31,490,533.50 = 9,922,679.49 : x
  2. Step 2: Convert to fraction form
    21,013,441.71/31,490,533.50 = 9,922,679.49/x
  3. Step 3: Cross multiply
    21,013,441.71x = 31,490,533.50 × 9,922,679.49
  4. Step 4: Simplify right side
    21,013,441.71x = 312,470,470,889,607.94
  5. Step 5: Solve for x
    x = 312,470,470,889,607.94/21,013,441.71
  6. Step 6: Final answer
    x = 14,870,028.20

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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.