Home / 28,006,507.60-42,009,761.40-10,961,515.60

Finding the Fourth Proportional to 28,006,507.60, 42,009,761.40 and 10,961,515.60

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Solution

The fourth proportional to 28,006,507.60, 42,009,761.40 and 10,961,515.60 is: 16,442,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006,507.60 : 42,009,761.40 = 10,961,515.60 : x
  2. Step 2: Convert to fraction form
    28,006,507.60/42,009,761.40 = 10,961,515.60/x
  3. Step 3: Cross multiply
    28,006,507.60x = 42,009,761.40 × 10,961,515.60
  4. Step 4: Simplify right side
    28,006,507.60x = 460,490,654,938,377.81
  5. Step 5: Solve for x
    x = 460,490,654,938,377.81/28,006,507.60
  6. Step 6: Final answer
    x = 16,442,273.40

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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.