Home / 45,139,728.51-62,311,896.20-30,475,259.28

Finding the Fourth Proportional to 45,139,728.51, 62,311,896.20 and 30,475,259.28

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Solution

The fourth proportional to 45,139,728.51, 62,311,896.20 and 30,475,259.28 is: 42,068,733.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,139,728.51 : 62,311,896.20 = 30,475,259.28 : x
  2. Step 2: Convert to fraction form
    45,139,728.51/62,311,896.20 = 30,475,259.28/x
  3. Step 3: Cross multiply
    45,139,728.51x = 62,311,896.20 × 30,475,259.28
  4. Step 4: Simplify right side
    45,139,728.51x = 1,898,971,192,999,635
  5. Step 5: Solve for x
    x = 1,898,971,192,999,635/45,139,728.51
  6. Step 6: Final answer
    x = 42,068,733.15

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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.