Home / 21,013,440.98-31,490,532.38-9,922,678.74

Finding the Fourth Proportional to 21,013,440.98, 31,490,532.38 and 9,922,678.74

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Solution

The fourth proportional to 21,013,440.98, 31,490,532.38 and 9,922,678.74 is: 14,870,027.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,013,440.98 : 31,490,532.38 = 9,922,678.74 : x
  2. Step 2: Convert to fraction form
    21,013,440.98/31,490,532.38 = 9,922,678.74/x
  3. Step 3: Cross multiply
    21,013,440.98x = 31,490,532.38 × 9,922,678.74
  4. Step 4: Simplify right side
    21,013,440.98x = 312,470,436,183,114.31
  5. Step 5: Solve for x
    x = 312,470,436,183,114.31/21,013,440.98
  6. Step 6: Final answer
    x = 14,870,027.07

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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.