Home / 187,778,187.60-281,289,367.80-130,335,320.40

Finding the Fourth Proportional to 187,778,187.60, 281,289,367.80 and 130,335,320.40

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Solution

The fourth proportional to 187,778,187.60, 281,289,367.80 and 130,335,320.40 is: 195,240,673.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,778,187.60 : 281,289,367.80 = 130,335,320.40 : x
  2. Step 2: Convert to fraction form
    187,778,187.60/281,289,367.80 = 130,335,320.40/x
  3. Step 3: Cross multiply
    187,778,187.60x = 281,289,367.80 × 130,335,320.40
  4. Step 4: Simplify right side
    187,778,187.60x = 36,661,939,877,326,448
  5. Step 5: Solve for x
    x = 36,661,939,877,326,448/187,778,187.60
  6. Step 6: Final answer
    x = 195,240,673.83

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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.