Home / 7,480,721.78-11,221,082.70-5,777,349.60

Finding the Fourth Proportional to 7,480,721.78, 11,221,082.70 and 5,777,349.60

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Solution

The fourth proportional to 7,480,721.78, 11,221,082.70 and 5,777,349.60 is: 8,666,024.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480,721.78 : 11,221,082.70 = 5,777,349.60 : x
  2. Step 2: Convert to fraction form
    7,480,721.78/11,221,082.70 = 5,777,349.60/x
  3. Step 3: Cross multiply
    7,480,721.78x = 11,221,082.70 × 5,777,349.60
  4. Step 4: Simplify right side
    7,480,721.78x = 64,828,117,648,411.91
  5. Step 5: Solve for x
    x = 64,828,117,648,411.91/7,480,721.78
  6. Step 6: Final answer
    x = 8,666,024.42

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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.