Home / 30,269,023.70-45,403,535.55-21,021,950.30

Finding the Fourth Proportional to 30,269,023.70, 45,403,535.55 and 21,021,950.30

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Solution

The fourth proportional to 30,269,023.70, 45,403,535.55 and 21,021,950.30 is: 31,532,925.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,269,023.70 : 45,403,535.55 = 21,021,950.30 : x
  2. Step 2: Convert to fraction form
    30,269,023.70/45,403,535.55 = 21,021,950.30/x
  3. Step 3: Cross multiply
    30,269,023.70x = 45,403,535.55 × 21,021,950.30
  4. Step 4: Simplify right side
    30,269,023.70x = 954,470,867,776,383.12
  5. Step 5: Solve for x
    x = 954,470,867,776,383.12/30,269,023.70
  6. Step 6: Final answer
    x = 31,532,925.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.