Home / 19,513,663-26,913,691.26-13,323,688.60

Finding the Fourth Proportional to 19,513,663, 26,913,691.26 and 13,323,688.60

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Solution

The fourth proportional to 19,513,663, 26,913,691.26 and 13,323,688.60 is: 18,376,336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,513,663 : 26,913,691.26 = 13,323,688.60 : x
  2. Step 2: Convert to fraction form
    19,513,663/26,913,691.26 = 13,323,688.60/x
  3. Step 3: Cross multiply
    19,513,663x = 26,913,691.26 × 13,323,688.60
  4. Step 4: Simplify right side
    19,513,663x = 358,589,641,424,781.62
  5. Step 5: Solve for x
    x = 358,589,641,424,781.62/19,513,663
  6. Step 6: Final answer
    x = 18,376,336.69

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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.