Home / 38,728,029.60-53,445,639.27-21,087,899.22

Finding the Fourth Proportional to 38,728,029.60, 53,445,639.27 and 21,087,899.22

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Solution

The fourth proportional to 38,728,029.60, 53,445,639.27 and 21,087,899.22 is: 29,101,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,728,029.60 : 53,445,639.27 = 21,087,899.22 : x
  2. Step 2: Convert to fraction form
    38,728,029.60/53,445,639.27 = 21,087,899.22/x
  3. Step 3: Cross multiply
    38,728,029.60x = 53,445,639.27 × 21,087,899.22
  4. Step 4: Simplify right side
    38,728,029.60x = 1,127,056,254,674,234.25
  5. Step 5: Solve for x
    x = 1,127,056,254,674,234.25/38,728,029.60
  6. Step 6: Final answer
    x = 29,101,822.80

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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.