Home / 524,438,537.76-723,725,326.80-289,489,350.96

Finding the Fourth Proportional to 524,438,537.76, 723,725,326.80 and 289,489,350.96

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Solution

The fourth proportional to 524,438,537.76, 723,725,326.80 and 289,489,350.96 is: 399,495,384.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,438,537.76 : 723,725,326.80 = 289,489,350.96 : x
  2. Step 2: Convert to fraction form
    524,438,537.76/723,725,326.80 = 289,489,350.96/x
  3. Step 3: Cross multiply
    524,438,537.76x = 723,725,326.80 × 289,489,350.96
  4. Step 4: Simplify right side
    524,438,537.76x = 209,510,775,128,645,856
  5. Step 5: Solve for x
    x = 209,510,775,128,645,856/524,438,537.76
  6. Step 6: Final answer
    x = 399,495,384.19

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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.