Home / 53,157,375.20-79,736,062.80-52,653,490.40

Finding the Fourth Proportional to 53,157,375.20, 79,736,062.80 and 52,653,490.40

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Solution

The fourth proportional to 53,157,375.20, 79,736,062.80 and 52,653,490.40 is: 78,980,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,157,375.20 : 79,736,062.80 = 52,653,490.40 : x
  2. Step 2: Convert to fraction form
    53,157,375.20/79,736,062.80 = 52,653,490.40/x
  3. Step 3: Cross multiply
    53,157,375.20x = 79,736,062.80 × 52,653,490.40
  4. Step 4: Simplify right side
    53,157,375.20x = 4,198,382,017,173,597
  5. Step 5: Solve for x
    x = 4,198,382,017,173,597/53,157,375.20
  6. Step 6: Final answer
    x = 78,980,235.60

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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.