Home / 129,031,996.80-193,547,995.20-83,346,441.60

Finding the Fourth Proportional to 129,031,996.80, 193,547,995.20 and 83,346,441.60

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Solution

The fourth proportional to 129,031,996.80, 193,547,995.20 and 83,346,441.60 is: 125,019,662.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,031,996.80 : 193,547,995.20 = 83,346,441.60 : x
  2. Step 2: Convert to fraction form
    129,031,996.80/193,547,995.20 = 83,346,441.60/x
  3. Step 3: Cross multiply
    129,031,996.80x = 193,547,995.20 × 83,346,441.60
  4. Step 4: Simplify right side
    129,031,996.80x = 16,131,536,678,733,878
  5. Step 5: Solve for x
    x = 16,131,536,678,733,878/129,031,996.80
  6. Step 6: Final answer
    x = 125,019,662.40

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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.