Home / 64,378,315.44-89,076,021.06-56,135,565.92

Finding the Fourth Proportional to 64,378,315.44, 89,076,021.06 and 56,135,565.92

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Solution

The fourth proportional to 64,378,315.44, 89,076,021.06 and 56,135,565.92 is: 77,671,073.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,378,315.44 : 89,076,021.06 = 56,135,565.92 : x
  2. Step 2: Convert to fraction form
    64,378,315.44/89,076,021.06 = 56,135,565.92/x
  3. Step 3: Cross multiply
    64,378,315.44x = 89,076,021.06 × 56,135,565.92
  4. Step 4: Simplify right side
    64,378,315.44x = 5,000,332,852,104,939
  5. Step 5: Solve for x
    x = 5,000,332,852,104,939/64,378,315.44
  6. Step 6: Final answer
    x = 77,671,073.22

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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.