Home / 137,652,045.50-189,963,738.65-74,932,188.32

Finding the Fourth Proportional to 137,652,045.50, 189,963,738.65 and 74,932,188.32

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Solution

The fourth proportional to 137,652,045.50, 189,963,738.65 and 74,932,188.32 is: 103,408,551.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,652,045.50 : 189,963,738.65 = 74,932,188.32 : x
  2. Step 2: Convert to fraction form
    137,652,045.50/189,963,738.65 = 74,932,188.32/x
  3. Step 3: Cross multiply
    137,652,045.50x = 189,963,738.65 × 74,932,188.32
  4. Step 4: Simplify right side
    137,652,045.50x = 14,234,398,638,493,062
  5. Step 5: Solve for x
    x = 14,234,398,638,493,062/137,652,045.50
  6. Step 6: Final answer
    x = 103,408,551.52

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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.