Home / 70,333,279.86-105,490,342.78-18,513,542.82

Finding the Fourth Proportional to 70,333,279.86, 105,490,342.78 and 18,513,542.82

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Solution

The fourth proportional to 70,333,279.86, 105,490,342.78 and 18,513,542.82 is: 27,767,793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,333,279.86 : 105,490,342.78 = 18,513,542.82 : x
  2. Step 2: Convert to fraction form
    70,333,279.86/105,490,342.78 = 18,513,542.82/x
  3. Step 3: Cross multiply
    70,333,279.86x = 105,490,342.78 × 18,513,542.82
  4. Step 4: Simplify right side
    70,333,279.86x = 1,952,999,978,503,313
  5. Step 5: Solve for x
    x = 1,952,999,978,503,313/70,333,279.86
  6. Step 6: Final answer
    x = 27,767,793.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.