Home / 517,804,989.54-776,702,168.97-299,316,308.43

Finding the Fourth Proportional to 517,804,989.54, 776,702,168.97 and 299,316,308.43

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Solution

The fourth proportional to 517,804,989.54, 776,702,168.97 and 299,316,308.43 is: 448,971,390.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,804,989.54 : 776,702,168.97 = 299,316,308.43 : x
  2. Step 2: Convert to fraction form
    517,804,989.54/776,702,168.97 = 299,316,308.43/x
  3. Step 3: Cross multiply
    517,804,989.54x = 776,702,168.97 × 299,316,308.43
  4. Step 4: Simplify right side
    517,804,989.54x = 232,479,625,965,674,496
  5. Step 5: Solve for x
    x = 232,479,625,965,674,496/517,804,989.54
  6. Step 6: Final answer
    x = 448,971,390.12

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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.