Home / 30,342,416.80-45,520,178.80-9,069,431.20

Finding the Fourth Proportional to 30,342,416.80, 45,520,178.80 and 9,069,431.20

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Solution

The fourth proportional to 30,342,416.80, 45,520,178.80 and 9,069,431.20 is: 13,606,105.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,342,416.80 : 45,520,178.80 = 9,069,431.20 : x
  2. Step 2: Convert to fraction form
    30,342,416.80/45,520,178.80 = 9,069,431.20/x
  3. Step 3: Cross multiply
    30,342,416.80x = 45,520,178.80 × 9,069,431.20
  4. Step 4: Simplify right side
    30,342,416.80x = 412,842,129,838,298.50
  5. Step 5: Solve for x
    x = 412,842,129,838,298.50/30,342,416.80
  6. Step 6: Final answer
    x = 13,606,105.69

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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.