Home / 28,408,891.40-42,613,337.10-12,483,643.40

Finding the Fourth Proportional to 28,408,891.40, 42,613,337.10 and 12,483,643.40

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Solution

The fourth proportional to 28,408,891.40, 42,613,337.10 and 12,483,643.40 is: 18,725,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408,891.40 : 42,613,337.10 = 12,483,643.40 : x
  2. Step 2: Convert to fraction form
    28,408,891.40/42,613,337.10 = 12,483,643.40/x
  3. Step 3: Cross multiply
    28,408,891.40x = 42,613,337.10 × 12,483,643.40
  4. Step 4: Simplify right side
    28,408,891.40x = 531,969,704,440,390.19
  5. Step 5: Solve for x
    x = 531,969,704,440,390.19/28,408,891.40
  6. Step 6: Final answer
    x = 18,725,465.10

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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.