Home / 98,589,679.92-136,041,905.22-56,787,340.45

Finding the Fourth Proportional to 98,589,679.92, 136,041,905.22 and 56,787,340.45

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Solution

The fourth proportional to 98,589,679.92, 136,041,905.22 and 56,787,340.45 is: 78,359,702.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,589,679.92 : 136,041,905.22 = 56,787,340.45 : x
  2. Step 2: Convert to fraction form
    98,589,679.92/136,041,905.22 = 56,787,340.45/x
  3. Step 3: Cross multiply
    98,589,679.92x = 136,041,905.22 × 56,787,340.45
  4. Step 4: Simplify right side
    98,589,679.92x = 7,725,457,987,194,772
  5. Step 5: Solve for x
    x = 7,725,457,987,194,772/98,589,679.92
  6. Step 6: Final answer
    x = 78,359,702.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.