Home / 38,478,503.10-53,101,193.82-21,958,298.76

Finding the Fourth Proportional to 38,478,503.10, 53,101,193.82 and 21,958,298.76

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Solution

The fourth proportional to 38,478,503.10, 53,101,193.82 and 21,958,298.76 is: 30,302,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478,503.10 : 53,101,193.82 = 21,958,298.76 : x
  2. Step 2: Convert to fraction form
    38,478,503.10/53,101,193.82 = 21,958,298.76/x
  3. Step 3: Cross multiply
    38,478,503.10x = 53,101,193.82 × 21,958,298.76
  4. Step 4: Simplify right side
    38,478,503.10x = 1,166,011,878,412,225.75
  5. Step 5: Solve for x
    x = 1,166,011,878,412,225.75/38,478,503.10
  6. Step 6: Final answer
    x = 30,302,942.80

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Double scale
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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.