Home / 28,268,890.60-42,411,209.10-13,892,427.40

Finding the Fourth Proportional to 28,268,890.60, 42,411,209.10 and 13,892,427.40

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Solution

The fourth proportional to 28,268,890.60, 42,411,209.10 and 13,892,427.40 is: 20,842,510.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268,890.60 : 42,411,209.10 = 13,892,427.40 : x
  2. Step 2: Convert to fraction form
    28,268,890.60/42,411,209.10 = 13,892,427.40/x
  3. Step 3: Cross multiply
    28,268,890.60x = 42,411,209.10 × 13,892,427.40
  4. Step 4: Simplify right side
    28,268,890.60x = 589,194,643,367,969.38
  5. Step 5: Solve for x
    x = 589,194,643,367,969.38/28,268,890.60
  6. Step 6: Final answer
    x = 20,842,510.30

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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.