Home / 28,268,928.60-42,411,266.10-13,892,465.40

Finding the Fourth Proportional to 28,268,928.60, 42,411,266.10 and 13,892,465.40

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Solution

The fourth proportional to 28,268,928.60, 42,411,266.10 and 13,892,465.40 is: 20,842,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268,928.60 : 42,411,266.10 = 13,892,465.40 : x
  2. Step 2: Convert to fraction form
    28,268,928.60/42,411,266.10 = 13,892,465.40/x
  3. Step 3: Cross multiply
    28,268,928.60x = 42,411,266.10 × 13,892,465.40
  4. Step 4: Simplify right side
    28,268,928.60x = 589,197,046,864,443
  5. Step 5: Solve for x
    x = 589,197,046,864,443/28,268,928.60
  6. Step 6: Final answer
    x = 20,842,567.30

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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.