Home / 137,416,752.09-189,726,433.59-105,570,201.63

Finding the Fourth Proportional to 137,416,752.09, 189,726,433.59 and 105,570,201.63

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Solution

The fourth proportional to 137,416,752.09, 189,726,433.59 and 105,570,201.63 is: 145,757,031.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,416,752.09 : 189,726,433.59 = 105,570,201.63 : x
  2. Step 2: Convert to fraction form
    137,416,752.09/189,726,433.59 = 105,570,201.63/x
  3. Step 3: Cross multiply
    137,416,752.09x = 189,726,433.59 × 105,570,201.63
  4. Step 4: Simplify right side
    137,416,752.09x = 20,029,457,848,637,104
  5. Step 5: Solve for x
    x = 20,029,457,848,637,104/137,416,752.09
  6. Step 6: Final answer
    x = 145,757,031.40

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1.5x scale

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.