Home / 84,289,807.80-126,434,711.70-54,056,719.80

Finding the Fourth Proportional to 84,289,807.80, 126,434,711.70 and 54,056,719.80

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Solution

The fourth proportional to 84,289,807.80, 126,434,711.70 and 54,056,719.80 is: 81,085,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,289,807.80 : 126,434,711.70 = 54,056,719.80 : x
  2. Step 2: Convert to fraction form
    84,289,807.80/126,434,711.70 = 54,056,719.80/x
  3. Step 3: Cross multiply
    84,289,807.80x = 126,434,711.70 × 54,056,719.80
  4. Step 4: Simplify right side
    84,289,807.80x = 6,834,645,783,360,681
  5. Step 5: Solve for x
    x = 6,834,645,783,360,681/84,289,807.80
  6. Step 6: Final answer
    x = 81,085,079.70

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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.