Home / 15,700,603.09-21,663,657.22-9,172,971.35

Finding the Fourth Proportional to 15,700,603.09, 21,663,657.22 and 9,172,971.35

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Solution

The fourth proportional to 15,700,603.09, 21,663,657.22 and 9,172,971.35 is: 12,656,845.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700,603.09 : 21,663,657.22 = 9,172,971.35 : x
  2. Step 2: Convert to fraction form
    15,700,603.09/21,663,657.22 = 9,172,971.35/x
  3. Step 3: Cross multiply
    15,700,603.09x = 21,663,657.22 × 9,172,971.35
  4. Step 4: Simplify right side
    15,700,603.09x = 198,720,107,015,280.62
  5. Step 5: Solve for x
    x = 198,720,107,015,280.62/15,700,603.09
  6. Step 6: Final answer
    x = 12,656,845.46

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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.