Home / 13,743,678.90-18,966,505.32-7,549,298.40

Finding the Fourth Proportional to 13,743,678.90, 18,966,505.32 and 7,549,298.40

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Solution

The fourth proportional to 13,743,678.90, 18,966,505.32 and 7,549,298.40 is: 10,418,157.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743,678.90 : 18,966,505.32 = 7,549,298.40 : x
  2. Step 2: Convert to fraction form
    13,743,678.90/18,966,505.32 = 7,549,298.40/x
  3. Step 3: Cross multiply
    13,743,678.90x = 18,966,505.32 × 7,549,298.40
  4. Step 4: Simplify right side
    13,743,678.90x = 143,183,808,265,867.50
  5. Step 5: Solve for x
    x = 143,183,808,265,867.50/13,743,678.90
  6. Step 6: Final answer
    x = 10,418,157.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.