Home / 12,528,070.60-18,792,105.90-9,339,424.60

Finding the Fourth Proportional to 12,528,070.60, 18,792,105.90 and 9,339,424.60

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Solution

The fourth proportional to 12,528,070.60, 18,792,105.90 and 9,339,424.60 is: 14,009,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,070.60 : 18,792,105.90 = 9,339,424.60 : x
  2. Step 2: Convert to fraction form
    12,528,070.60/18,792,105.90 = 9,339,424.60/x
  3. Step 3: Cross multiply
    12,528,070.60x = 18,792,105.90 × 9,339,424.60
  4. Step 4: Simplify right side
    12,528,070.60x = 175,507,456,128,265.12
  5. Step 5: Solve for x
    x = 175,507,456,128,265.12/12,528,070.60
  6. Step 6: Final answer
    x = 14,009,136.90

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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.