Home / 19,953,712.80-29,895,139.80-18,678,254.40

Finding the Fourth Proportional to 19,953,712.80, 29,895,139.80 and 18,678,254.40

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Solution

The fourth proportional to 19,953,712.80, 29,895,139.80 and 18,678,254.40 is: 27,984,216.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,953,712.80 : 29,895,139.80 = 18,678,254.40 : x
  2. Step 2: Convert to fraction form
    19,953,712.80/29,895,139.80 = 18,678,254.40/x
  3. Step 3: Cross multiply
    19,953,712.80x = 29,895,139.80 × 18,678,254.40
  4. Step 4: Simplify right side
    19,953,712.80x = 558,389,026,507,965.06
  5. Step 5: Solve for x
    x = 558,389,026,507,965.06/19,953,712.80
  6. Step 6: Final answer
    x = 27,984,216.88

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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.