Home / 30,208,215.20-45,312,322.80-8,644,103.60

Finding the Fourth Proportional to 30,208,215.20, 45,312,322.80 and 8,644,103.60

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Solution

The fourth proportional to 30,208,215.20, 45,312,322.80 and 8,644,103.60 is: 12,966,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,208,215.20 : 45,312,322.80 = 8,644,103.60 : x
  2. Step 2: Convert to fraction form
    30,208,215.20/45,312,322.80 = 8,644,103.60/x
  3. Step 3: Cross multiply
    30,208,215.20x = 45,312,322.80 × 8,644,103.60
  4. Step 4: Simplify right side
    30,208,215.20x = 391,684,412,639,842.06
  5. Step 5: Solve for x
    x = 391,684,412,639,842.06/30,208,215.20
  6. Step 6: Final answer
    x = 12,966,155.40

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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.