Home / 12,547,005.22-18,821,407.39-5,253,125.12

Finding the Fourth Proportional to 12,547,005.22, 18,821,407.39 and 5,253,125.12

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Solution

The fourth proportional to 12,547,005.22, 18,821,407.39 and 5,253,125.12 is: 7,880,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547,005.22 : 18,821,407.39 = 5,253,125.12 : x
  2. Step 2: Convert to fraction form
    12,547,005.22/18,821,407.39 = 5,253,125.12/x
  3. Step 3: Cross multiply
    12,547,005.22x = 18,821,407.39 × 5,253,125.12
  4. Step 4: Simplify right side
    12,547,005.22x = 98,871,207,860,055.61
  5. Step 5: Solve for x
    x = 98,871,207,860,055.61/12,547,005.22
  6. Step 6: Final answer
    x = 7,880,064.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.