Home / 45,398,521.60-68,097,782.40-28,378,412.80

Finding the Fourth Proportional to 45,398,521.60, 68,097,782.40 and 28,378,412.80

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Solution

The fourth proportional to 45,398,521.60, 68,097,782.40 and 28,378,412.80 is: 42,567,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,398,521.60 : 68,097,782.40 = 28,378,412.80 : x
  2. Step 2: Convert to fraction form
    45,398,521.60/68,097,782.40 = 28,378,412.80/x
  3. Step 3: Cross multiply
    45,398,521.60x = 68,097,782.40 × 28,378,412.80
  4. Step 4: Simplify right side
    45,398,521.60x = 1,932,506,979,711,775
  5. Step 5: Solve for x
    x = 1,932,506,979,711,775/45,398,521.60
  6. Step 6: Final answer
    x = 42,567,619.20

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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.