Home / 497,576,726.08-686,904,477.60-309,465,653.56

Finding the Fourth Proportional to 497,576,726.08, 686,904,477.60 and 309,465,653.56

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Solution

The fourth proportional to 497,576,726.08, 686,904,477.60 and 309,465,653.56 is: 427,217,214.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,576,726.08 : 686,904,477.60 = 309,465,653.56 : x
  2. Step 2: Convert to fraction form
    497,576,726.08/686,904,477.60 = 309,465,653.56/x
  3. Step 3: Cross multiply
    497,576,726.08x = 686,904,477.60 × 309,465,653.56
  4. Step 4: Simplify right side
    497,576,726.08x = 212,573,343,093,774,400
  5. Step 5: Solve for x
    x = 212,573,343,093,774,400/497,576,726.08
  6. Step 6: Final answer
    x = 427,217,214.86

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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.