Home / 562,139,082.81-775,776,176.66-311,243,479.43

Finding the Fourth Proportional to 562,139,082.81, 775,776,176.66 and 311,243,479.43

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Solution

The fourth proportional to 562,139,082.81, 775,776,176.66 and 311,243,479.43 is: 429,529,424.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,139,082.81 : 775,776,176.66 = 311,243,479.43 : x
  2. Step 2: Convert to fraction form
    562,139,082.81/775,776,176.66 = 311,243,479.43/x
  3. Step 3: Cross multiply
    562,139,082.81x = 775,776,176.66 × 311,243,479.43
  4. Step 4: Simplify right side
    562,139,082.81x = 241,455,276,479,460,000
  5. Step 5: Solve for x
    x = 241,455,276,479,460,000/562,139,082.81
  6. Step 6: Final answer
    x = 429,529,424.06

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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.