Home / 28,006,486.40-42,009,729.60-26,305,875.20

Finding the Fourth Proportional to 28,006,486.40, 42,009,729.60 and 26,305,875.20

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Solution

The fourth proportional to 28,006,486.40, 42,009,729.60 and 26,305,875.20 is: 39,458,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006,486.40 : 42,009,729.60 = 26,305,875.20 : x
  2. Step 2: Convert to fraction form
    28,006,486.40/42,009,729.60 = 26,305,875.20/x
  3. Step 3: Cross multiply
    28,006,486.40x = 42,009,729.60 × 26,305,875.20
  4. Step 4: Simplify right side
    28,006,486.40x = 1,105,102,704,043,345.88
  5. Step 5: Solve for x
    x = 1,105,102,704,043,345.88/28,006,486.40
  6. Step 6: Final answer
    x = 39,458,812.80

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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.