Home / 12,382,670.70-18,537,264.45-9,201,897.90

Finding the Fourth Proportional to 12,382,670.70, 18,537,264.45 and 9,201,897.90

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Solution

The fourth proportional to 12,382,670.70, 18,537,264.45 and 9,201,897.90 is: 13,775,543.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382,670.70 : 18,537,264.45 = 9,201,897.90 : x
  2. Step 2: Convert to fraction form
    12,382,670.70/18,537,264.45 = 9,201,897.90/x
  3. Step 3: Cross multiply
    12,382,670.70x = 18,537,264.45 × 9,201,897.90
  4. Step 4: Simplify right side
    12,382,670.70x = 170,578,014,814,199.66
  5. Step 5: Solve for x
    x = 170,578,014,814,199.66/12,382,670.70
  6. Step 6: Final answer
    x = 13,775,543.17

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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.