Home / 129,346,800.70-194,020,201.05-83,430,298.30

Finding the Fourth Proportional to 129,346,800.70, 194,020,201.05 and 83,430,298.30

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Solution

The fourth proportional to 129,346,800.70, 194,020,201.05 and 83,430,298.30 is: 125,145,447.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,346,800.70 : 194,020,201.05 = 83,430,298.30 : x
  2. Step 2: Convert to fraction form
    129,346,800.70/194,020,201.05 = 83,430,298.30/x
  3. Step 3: Cross multiply
    129,346,800.70x = 194,020,201.05 × 83,430,298.30
  4. Step 4: Simplify right side
    129,346,800.70x = 16,187,163,249,827,474
  5. Step 5: Solve for x
    x = 16,187,163,249,827,474/129,346,800.70
  6. Step 6: Final answer
    x = 125,145,447.45

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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.