Home / 12,537,038.40-18,805,557.60-11,781,211.20

Finding the Fourth Proportional to 12,537,038.40, 18,805,557.60 and 11,781,211.20

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Solution

The fourth proportional to 12,537,038.40, 18,805,557.60 and 11,781,211.20 is: 17,671,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,537,038.40 : 18,805,557.60 = 11,781,211.20 : x
  2. Step 2: Convert to fraction form
    12,537,038.40/18,805,557.60 = 11,781,211.20/x
  3. Step 3: Cross multiply
    12,537,038.40x = 18,805,557.60 × 11,781,211.20
  4. Step 4: Simplify right side
    12,537,038.40x = 221,552,245,819,365.12
  5. Step 5: Solve for x
    x = 221,552,245,819,365.12/12,537,038.40
  6. Step 6: Final answer
    x = 17,671,816.80

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1.5x scale

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.