Home / 28,081,445.40-42,122,168.10-13,713,730.20

Finding the Fourth Proportional to 28,081,445.40, 42,122,168.10 and 13,713,730.20

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Solution

The fourth proportional to 28,081,445.40, 42,122,168.10 and 13,713,730.20 is: 20,570,595.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081,445.40 : 42,122,168.10 = 13,713,730.20 : x
  2. Step 2: Convert to fraction form
    28,081,445.40/42,122,168.10 = 13,713,730.20/x
  3. Step 3: Cross multiply
    28,081,445.40x = 42,122,168.10 × 13,713,730.20
  4. Step 4: Simplify right side
    28,081,445.40x = 577,652,048,762,446.62
  5. Step 5: Solve for x
    x = 577,652,048,762,446.62/28,081,445.40
  6. Step 6: Final answer
    x = 20,570,595.30

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1.5x scale

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.