Home / 129,764,388.60-194,756,807.70-53,142,406.20

Finding the Fourth Proportional to 129,764,388.60, 194,756,807.70 and 53,142,406.20

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Solution

The fourth proportional to 129,764,388.60, 194,756,807.70 and 53,142,406.20 is: 79,758,749.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,764,388.60 : 194,756,807.70 = 53,142,406.20 : x
  2. Step 2: Convert to fraction form
    129,764,388.60/194,756,807.70 = 53,142,406.20/x
  3. Step 3: Cross multiply
    129,764,388.60x = 194,756,807.70 × 53,142,406.20
  4. Step 4: Simplify right side
    129,764,388.60x = 10,349,845,385,008,688
  5. Step 5: Solve for x
    x = 10,349,845,385,008,688/129,764,388.60
  6. Step 6: Final answer
    x = 79,758,749.66

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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.