Home / 78,568,066.82-108,423,963.77-45,547,460.21

Finding the Fourth Proportional to 78,568,066.82, 108,423,963.77 and 45,547,460.21

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Solution

The fourth proportional to 78,568,066.82, 108,423,963.77 and 45,547,460.21 is: 62,855,513.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,568,066.82 : 108,423,963.77 = 45,547,460.21 : x
  2. Step 2: Convert to fraction form
    78,568,066.82/108,423,963.77 = 45,547,460.21/x
  3. Step 3: Cross multiply
    78,568,066.82x = 108,423,963.77 × 45,547,460.21
  4. Step 4: Simplify right side
    78,568,066.82x = 4,938,436,174,854,699
  5. Step 5: Solve for x
    x = 4,938,436,174,854,699/78,568,066.82
  6. Step 6: Final answer
    x = 62,855,513.38

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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.