Home / 38,417,600.76-53,016,447.69-20,776,502.94

Finding the Fourth Proportional to 38,417,600.76, 53,016,447.69 and 20,776,502.94

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Solution

The fourth proportional to 38,417,600.76, 53,016,447.69 and 20,776,502.94 is: 28,671,659.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,417,600.76 : 53,016,447.69 = 20,776,502.94 : x
  2. Step 2: Convert to fraction form
    38,417,600.76/53,016,447.69 = 20,776,502.94/x
  3. Step 3: Cross multiply
    38,417,600.76x = 53,016,447.69 × 20,776,502.94
  4. Step 4: Simplify right side
    38,417,600.76x = 1,101,496,381,299,641.25
  5. Step 5: Solve for x
    x = 1,101,496,381,299,641.25/38,417,600.76
  6. Step 6: Final answer
    x = 28,671,659.85

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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.