Home / 128,760,169.95-193,152,064.73-42,498,766.35

Finding the Fourth Proportional to 128,760,169.95, 193,152,064.73 and 42,498,766.35

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Solution

The fourth proportional to 128,760,169.95, 193,152,064.73 and 42,498,766.35 is: 63,752,047.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,760,169.95 : 193,152,064.73 = 42,498,766.35 : x
  2. Step 2: Convert to fraction form
    128,760,169.95/193,152,064.73 = 42,498,766.35/x
  3. Step 3: Cross multiply
    128,760,169.95x = 193,152,064.73 × 42,498,766.35
  4. Step 4: Simplify right side
    128,760,169.95x = 8,208,724,468,767,852
  5. Step 5: Solve for x
    x = 8,208,724,468,767,852/128,760,169.95
  6. Step 6: Final answer
    x = 63,752,047.48

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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.