Home / 517,048,299.28-771,018,727.43-512,384,904.50

Finding the Fourth Proportional to 517,048,299.28, 771,018,727.43 and 512,384,904.50

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Solution

The fourth proportional to 517,048,299.28, 771,018,727.43 and 512,384,904.50 is: 764,064,706.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,048,299.28 : 771,018,727.43 = 512,384,904.50 : x
  2. Step 2: Convert to fraction form
    517,048,299.28/771,018,727.43 = 512,384,904.50/x
  3. Step 3: Cross multiply
    517,048,299.28x = 771,018,727.43 × 512,384,904.50
  4. Step 4: Simplify right side
    517,048,299.28x = 395,058,357,021,297,664
  5. Step 5: Solve for x
    x = 395,058,357,021,297,664/517,048,299.28
  6. Step 6: Final answer
    x = 764,064,706.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.