Home / 621,238,374.64-857,326,901.16-342,797,829.04

Finding the Fourth Proportional to 621,238,374.64, 857,326,901.16 and 342,797,829.04

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Solution

The fourth proportional to 621,238,374.64, 857,326,901.16 and 342,797,829.04 is: 473,070,905.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,238,374.64 : 857,326,901.16 = 342,797,829.04 : x
  2. Step 2: Convert to fraction form
    621,238,374.64/857,326,901.16 = 342,797,829.04/x
  3. Step 3: Cross multiply
    621,238,374.64x = 857,326,901.16 × 342,797,829.04
  4. Step 4: Simplify right side
    621,238,374.64x = 293,889,800,495,238,656
  5. Step 5: Solve for x
    x = 293,889,800,495,238,656/621,238,374.64
  6. Step 6: Final answer
    x = 473,070,905.62

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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.