Home / 30,209,080.60-45,313,620.90-8,644,385.80

Finding the Fourth Proportional to 30,209,080.60, 45,313,620.90 and 8,644,385.80

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Solution

The fourth proportional to 30,209,080.60, 45,313,620.90 and 8,644,385.80 is: 12,966,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209,080.60 : 45,313,620.90 = 8,644,385.80 : x
  2. Step 2: Convert to fraction form
    30,209,080.60/45,313,620.90 = 8,644,385.80/x
  3. Step 3: Cross multiply
    30,209,080.60x = 45,313,620.90 × 8,644,385.80
  4. Step 4: Simplify right side
    30,209,080.60x = 391,708,421,054,543.25
  5. Step 5: Solve for x
    x = 391,708,421,054,543.25/30,209,080.60
  6. Step 6: Final answer
    x = 12,966,578.70

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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.