Home / 86,925,331.20-130,387,996.80-56,314,329.60

Finding the Fourth Proportional to 86,925,331.20, 130,387,996.80 and 56,314,329.60

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Solution

The fourth proportional to 86,925,331.20, 130,387,996.80 and 56,314,329.60 is: 84,471,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,925,331.20 : 130,387,996.80 = 56,314,329.60 : x
  2. Step 2: Convert to fraction form
    86,925,331.20/130,387,996.80 = 56,314,329.60/x
  3. Step 3: Cross multiply
    86,925,331.20x = 130,387,996.80 × 56,314,329.60
  4. Step 4: Simplify right side
    86,925,331.20x = 7,342,712,627,678,945
  5. Step 5: Solve for x
    x = 7,342,712,627,678,945/86,925,331.20
  6. Step 6: Final answer
    x = 84,471,494.40

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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.