Home / 72,076,137.92-99,473,809.46-40,715,509.26

Finding the Fourth Proportional to 72,076,137.92, 99,473,809.46 and 40,715,509.26

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Solution

The fourth proportional to 72,076,137.92, 99,473,809.46 and 40,715,509.26 is: 56,192,339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,076,137.92 : 99,473,809.46 = 40,715,509.26 : x
  2. Step 2: Convert to fraction form
    72,076,137.92/99,473,809.46 = 40,715,509.26/x
  3. Step 3: Cross multiply
    72,076,137.92x = 99,473,809.46 × 40,715,509.26
  4. Step 4: Simplify right side
    72,076,137.92x = 4,050,126,809,992,528
  5. Step 5: Solve for x
    x = 4,050,126,809,992,528/72,076,137.92
  6. Step 6: Final answer
    x = 56,192,339.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.