Home / 56,709,972.80-84,876,002.40-52,175,009.60

Finding the Fourth Proportional to 56,709,972.80, 84,876,002.40 and 52,175,009.60

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Solution

The fourth proportional to 56,709,972.80, 84,876,002.40 and 52,175,009.60 is: 78,088,668.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,709,972.80 : 84,876,002.40 = 52,175,009.60 : x
  2. Step 2: Convert to fraction form
    56,709,972.80/84,876,002.40 = 52,175,009.60/x
  3. Step 3: Cross multiply
    56,709,972.80x = 84,876,002.40 × 52,175,009.60
  4. Step 4: Simplify right side
    56,709,972.80x = 4,428,406,240,029,623.50
  5. Step 5: Solve for x
    x = 4,428,406,240,029,623.50/56,709,972.80
  6. Step 6: Final answer
    x = 78,088,668.03

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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.