Home / 21,038,688.80-31,558,033.20-9,701,280.80

Finding the Fourth Proportional to 21,038,688.80, 31,558,033.20 and 9,701,280.80

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Solution

The fourth proportional to 21,038,688.80, 31,558,033.20 and 9,701,280.80 is: 14,551,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038,688.80 : 31,558,033.20 = 9,701,280.80 : x
  2. Step 2: Convert to fraction form
    21,038,688.80/31,558,033.20 = 9,701,280.80/x
  3. Step 3: Cross multiply
    21,038,688.80x = 31,558,033.20 × 9,701,280.80
  4. Step 4: Simplify right side
    21,038,688.80x = 306,153,341,568,922.56
  5. Step 5: Solve for x
    x = 306,153,341,568,922.56/21,038,688.80
  6. Step 6: Final answer
    x = 14,551,921.20

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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.