Home / 28,023,639.60-42,035,459.40-18,449,828.40

Finding the Fourth Proportional to 28,023,639.60, 42,035,459.40 and 18,449,828.40

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Solution

The fourth proportional to 28,023,639.60, 42,035,459.40 and 18,449,828.40 is: 27,674,742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023,639.60 : 42,035,459.40 = 18,449,828.40 : x
  2. Step 2: Convert to fraction form
    28,023,639.60/42,035,459.40 = 18,449,828.40/x
  3. Step 3: Cross multiply
    28,023,639.60x = 42,035,459.40 × 18,449,828.40
  4. Step 4: Simplify right side
    28,023,639.60x = 775,547,012,645,166.88
  5. Step 5: Solve for x
    x = 775,547,012,645,166.88/28,023,639.60
  6. Step 6: Final answer
    x = 27,674,742.60

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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.