Home / 28,047,536.16-38,705,637-15,825,530.40

Finding the Fourth Proportional to 28,047,536.16, 38,705,637 and 15,825,530.40

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Solution

The fourth proportional to 28,047,536.16, 38,705,637 and 15,825,530.40 is: 21,839,252.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047,536.16 : 38,705,637 = 15,825,530.40 : x
  2. Step 2: Convert to fraction form
    28,047,536.16/38,705,637 = 15,825,530.40/x
  3. Step 3: Cross multiply
    28,047,536.16x = 38,705,637 × 15,825,530.40
  4. Step 4: Simplify right side
    28,047,536.16x = 612,537,234,994,864.88
  5. Step 5: Solve for x
    x = 612,537,234,994,864.88/28,047,536.16
  6. Step 6: Final answer
    x = 21,839,252.88

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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.