Home / 21,374,583.60-32,061,875.40-19,209,745.20

Finding the Fourth Proportional to 21,374,583.60, 32,061,875.40 and 19,209,745.20

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Solution

The fourth proportional to 21,374,583.60, 32,061,875.40 and 19,209,745.20 is: 28,814,617.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,374,583.60 : 32,061,875.40 = 19,209,745.20 : x
  2. Step 2: Convert to fraction form
    21,374,583.60/32,061,875.40 = 19,209,745.20/x
  3. Step 3: Cross multiply
    21,374,583.60x = 32,061,875.40 × 19,209,745.20
  4. Step 4: Simplify right side
    21,374,583.60x = 615,900,457,068,148
  5. Step 5: Solve for x
    x = 615,900,457,068,148/21,374,583.60
  6. Step 6: Final answer
    x = 28,814,617.80

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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.