Home / 20,564,387.19-30,662,729.69-19,999,398.96

Finding the Fourth Proportional to 20,564,387.19, 30,662,729.69 and 19,999,398.96

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Solution

The fourth proportional to 20,564,387.19, 30,662,729.69 and 19,999,398.96 is: 29,820,298.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564,387.19 : 30,662,729.69 = 19,999,398.96 : x
  2. Step 2: Convert to fraction form
    20,564,387.19/30,662,729.69 = 19,999,398.96/x
  3. Step 3: Cross multiply
    20,564,387.19x = 30,662,729.69 × 19,999,398.96
  4. Step 4: Simplify right side
    20,564,387.19x = 613,236,164,172,950.12
  5. Step 5: Solve for x
    x = 613,236,164,172,950.12/20,564,387.19
  6. Step 6: Final answer
    x = 29,820,298.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.