Home / 72,076,041.54-99,473,676.38-40,715,412.89

Finding the Fourth Proportional to 72,076,041.54, 99,473,676.38 and 40,715,412.89

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Solution

The fourth proportional to 72,076,041.54, 99,473,676.38 and 40,715,412.89 is: 56,192,206.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,076,041.54 : 99,473,676.38 = 40,715,412.89 : x
  2. Step 2: Convert to fraction form
    72,076,041.54/99,473,676.38 = 40,715,412.89/x
  3. Step 3: Cross multiply
    72,076,041.54x = 99,473,676.38 × 40,715,412.89
  4. Step 4: Simplify right side
    72,076,041.54x = 4,050,111,804,949,677.50
  5. Step 5: Solve for x
    x = 4,050,111,804,949,677.50/72,076,041.54
  6. Step 6: Final answer
    x = 56,192,206.43

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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.