Home / 28,006,257.60-42,009,386.40-10,961,265.60

Finding the Fourth Proportional to 28,006,257.60, 42,009,386.40 and 10,961,265.60

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Solution

The fourth proportional to 28,006,257.60, 42,009,386.40 and 10,961,265.60 is: 16,441,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006,257.60 : 42,009,386.40 = 10,961,265.60 : x
  2. Step 2: Convert to fraction form
    28,006,257.60/42,009,386.40 = 10,961,265.60/x
  3. Step 3: Cross multiply
    28,006,257.60x = 42,009,386.40 × 10,961,265.60
  4. Step 4: Simplify right side
    28,006,257.60x = 460,476,042,023,427.81
  5. Step 5: Solve for x
    x = 460,476,042,023,427.81/28,006,257.60
  6. Step 6: Final answer
    x = 16,441,898.40

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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.