Home / 28,516,809.60-42,775,214.40-20,958,537.60

Finding the Fourth Proportional to 28,516,809.60, 42,775,214.40 and 20,958,537.60

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Solution

The fourth proportional to 28,516,809.60, 42,775,214.40 and 20,958,537.60 is: 31,437,806.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,516,809.60 : 42,775,214.40 = 20,958,537.60 : x
  2. Step 2: Convert to fraction form
    28,516,809.60/42,775,214.40 = 20,958,537.60/x
  3. Step 3: Cross multiply
    28,516,809.60x = 42,775,214.40 × 20,958,537.60
  4. Step 4: Simplify right side
    28,516,809.60x = 896,505,939,350,461.50
  5. Step 5: Solve for x
    x = 896,505,939,350,461.50/28,516,809.60
  6. Step 6: Final answer
    x = 31,437,806.40

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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.