Home / 302,207,712.70-453,311,569.05-278,021,242.30

Finding the Fourth Proportional to 302,207,712.70, 453,311,569.05 and 278,021,242.30

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Solution

The fourth proportional to 302,207,712.70, 453,311,569.05 and 278,021,242.30 is: 417,031,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,207,712.70 : 453,311,569.05 = 278,021,242.30 : x
  2. Step 2: Convert to fraction form
    302,207,712.70/453,311,569.05 = 278,021,242.30/x
  3. Step 3: Cross multiply
    302,207,712.70x = 453,311,569.05 × 278,021,242.30
  4. Step 4: Simplify right side
    302,207,712.70x = 126,030,245,576,243,232
  5. Step 5: Solve for x
    x = 126,030,245,576,243,232/302,207,712.70
  6. Step 6: Final answer
    x = 417,031,863.45

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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.