Home / 56,890,278.27-78,508,792.04-30,784,796.19

Finding the Fourth Proportional to 56,890,278.27, 78,508,792.04 and 30,784,796.19

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Solution

The fourth proportional to 56,890,278.27, 78,508,792.04 and 30,784,796.19 is: 42,483,131.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,890,278.27 : 78,508,792.04 = 30,784,796.19 : x
  2. Step 2: Convert to fraction form
    56,890,278.27/78,508,792.04 = 30,784,796.19/x
  3. Step 3: Cross multiply
    56,890,278.27x = 78,508,792.04 × 30,784,796.19
  4. Step 4: Simplify right side
    56,890,278.27x = 2,416,877,161,920,570.50
  5. Step 5: Solve for x
    x = 2,416,877,161,920,570.50/56,890,278.27
  6. Step 6: Final answer
    x = 42,483,131.31

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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.