Home / 28,318,686.31-42,460,944.40-10,812,386.62

Finding the Fourth Proportional to 28,318,686.31, 42,460,944.40 and 10,812,386.62

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Solution

The fourth proportional to 28,318,686.31, 42,460,944.40 and 10,812,386.62 is: 16,212,056.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318,686.31 : 42,460,944.40 = 10,812,386.62 : x
  2. Step 2: Convert to fraction form
    28,318,686.31/42,460,944.40 = 10,812,386.62/x
  3. Step 3: Cross multiply
    28,318,686.31x = 42,460,944.40 × 10,812,386.62
  4. Step 4: Simplify right side
    28,318,686.31x = 459,104,147,103,123.88
  5. Step 5: Solve for x
    x = 459,104,147,103,123.88/28,318,686.31
  6. Step 6: Final answer
    x = 16,212,056.66

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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.