Home / 83,389,772.30-124,908,688.78-66,905,811.41

Finding the Fourth Proportional to 83,389,772.30, 124,908,688.78 and 66,905,811.41

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Solution

The fourth proportional to 83,389,772.30, 124,908,688.78 and 66,905,811.41 is: 100,217,532.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,389,772.30 : 124,908,688.78 = 66,905,811.41 : x
  2. Step 2: Convert to fraction form
    83,389,772.30/124,908,688.78 = 66,905,811.41/x
  3. Step 3: Cross multiply
    83,389,772.30x = 124,908,688.78 × 66,905,811.41
  4. Step 4: Simplify right side
    83,389,772.30x = 8,357,117,174,193,255
  5. Step 5: Solve for x
    x = 8,357,117,174,193,255/83,389,772.30
  6. Step 6: Final answer
    x = 100,217,532.01

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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.