Home / 28,043,653.12-42,139,457.40-15,099,374.24

Finding the Fourth Proportional to 28,043,653.12, 42,139,457.40 and 15,099,374.24

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Solution

The fourth proportional to 28,043,653.12, 42,139,457.40 and 15,099,374.24 is: 22,688,892.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043,653.12 : 42,139,457.40 = 15,099,374.24 : x
  2. Step 2: Convert to fraction form
    28,043,653.12/42,139,457.40 = 15,099,374.24/x
  3. Step 3: Cross multiply
    28,043,653.12x = 42,139,457.40 × 15,099,374.24
  4. Step 4: Simplify right side
    28,043,653.12x = 636,279,437,553,137.38
  5. Step 5: Solve for x
    x = 636,279,437,553,137.38/28,043,653.12
  6. Step 6: Final answer
    x = 22,688,892.74

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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.