Home / 12,137,038.40-18,205,557.60-10,919,316.80

Finding the Fourth Proportional to 12,137,038.40, 18,205,557.60 and 10,919,316.80

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Solution

The fourth proportional to 12,137,038.40, 18,205,557.60 and 10,919,316.80 is: 16,378,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137,038.40 : 18,205,557.60 = 10,919,316.80 : x
  2. Step 2: Convert to fraction form
    12,137,038.40/18,205,557.60 = 10,919,316.80/x
  3. Step 3: Cross multiply
    12,137,038.40x = 18,205,557.60 × 10,919,316.80
  4. Step 4: Simplify right side
    12,137,038.40x = 198,792,250,955,047.72
  5. Step 5: Solve for x
    x = 198,792,250,955,047.72/12,137,038.40
  6. Step 6: Final answer
    x = 16,378,975.20

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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.