Home / 521,744,725.41-720,009,214.47-298,729,827.87

Finding the Fourth Proportional to 521,744,725.41, 720,009,214.47 and 298,729,827.87

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Solution

The fourth proportional to 521,744,725.41, 720,009,214.47 and 298,729,827.87 is: 412,248,017.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,744,725.41 : 720,009,214.47 = 298,729,827.87 : x
  2. Step 2: Convert to fraction form
    521,744,725.41/720,009,214.47 = 298,729,827.87/x
  3. Step 3: Cross multiply
    521,744,725.41x = 720,009,214.47 × 298,729,827.87
  4. Step 4: Simplify right side
    521,744,725.41x = 215,088,228,703,437,024
  5. Step 5: Solve for x
    x = 215,088,228,703,437,024/521,744,725.41
  6. Step 6: Final answer
    x = 412,248,017.52

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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.