Home / 64,378,306.44-89,076,008.61-56,135,556.90

Finding the Fourth Proportional to 64,378,306.44, 89,076,008.61 and 56,135,556.90

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Solution

The fourth proportional to 64,378,306.44, 89,076,008.61 and 56,135,556.90 is: 77,671,060.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,378,306.44 : 89,076,008.61 = 56,135,556.90 : x
  2. Step 2: Convert to fraction form
    64,378,306.44/89,076,008.61 = 56,135,556.90/x
  3. Step 3: Cross multiply
    64,378,306.44x = 89,076,008.61 × 56,135,556.90
  4. Step 4: Simplify right side
    64,378,306.44x = 5,000,331,349,751,545
  5. Step 5: Solve for x
    x = 5,000,331,349,751,545/64,378,306.44
  6. Step 6: Final answer
    x = 77,671,060.74

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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.