Home / 56,770,979.86-78,343,983.70-30,665,497.84

Finding the Fourth Proportional to 56,770,979.86, 78,343,983.70 and 30,665,497.84

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Solution

The fourth proportional to 56,770,979.86, 78,343,983.70 and 30,665,497.84 is: 42,318,404.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,770,979.86 : 78,343,983.70 = 30,665,497.84 : x
  2. Step 2: Convert to fraction form
    56,770,979.86/78,343,983.70 = 30,665,497.84/x
  3. Step 3: Cross multiply
    56,770,979.86x = 78,343,983.70 × 30,665,497.84
  4. Step 4: Simplify right side
    56,770,979.86x = 2,402,457,262,929,345.50
  5. Step 5: Solve for x
    x = 2,402,457,262,929,345.50/56,770,979.86
  6. Step 6: Final answer
    x = 42,318,404.03

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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.