Home / 54,918,221.80-82,377,332.70-42,163,637.80

Finding the Fourth Proportional to 54,918,221.80, 82,377,332.70 and 42,163,637.80

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Solution

The fourth proportional to 54,918,221.80, 82,377,332.70 and 42,163,637.80 is: 63,245,456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,918,221.80 : 82,377,332.70 = 42,163,637.80 : x
  2. Step 2: Convert to fraction form
    54,918,221.80/82,377,332.70 = 42,163,637.80/x
  3. Step 3: Cross multiply
    54,918,221.80x = 82,377,332.70 × 42,163,637.80
  4. Step 4: Simplify right side
    54,918,221.80x = 3,473,328,018,892,896
  5. Step 5: Solve for x
    x = 3,473,328,018,892,896/54,918,221.80
  6. Step 6: Final answer
    x = 63,245,456.70

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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.