Home / 28,996,720.51-40,015,192.96-15,765,897.23

Finding the Fourth Proportional to 28,996,720.51, 40,015,192.96 and 15,765,897.23

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Solution

The fourth proportional to 28,996,720.51, 40,015,192.96 and 15,765,897.23 is: 21,756,785.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996,720.51 : 40,015,192.96 = 15,765,897.23 : x
  2. Step 2: Convert to fraction form
    28,996,720.51/40,015,192.96 = 15,765,897.23/x
  3. Step 3: Cross multiply
    28,996,720.51x = 40,015,192.96 × 15,765,897.23
  4. Step 4: Simplify right side
    28,996,720.51x = 630,875,419,845,979.50
  5. Step 5: Solve for x
    x = 630,875,419,845,979.50/28,996,720.51
  6. Step 6: Final answer
    x = 21,756,785.21

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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.