Home / 105,157,561.34-145,117,884.96-57,473,778.86

Finding the Fourth Proportional to 105,157,561.34, 145,117,884.96 and 57,473,778.86

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Solution

The fourth proportional to 105,157,561.34, 145,117,884.96 and 57,473,778.86 is: 79,314,060.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,157,561.34 : 145,117,884.96 = 57,473,778.86 : x
  2. Step 2: Convert to fraction form
    105,157,561.34/145,117,884.96 = 57,473,778.86/x
  3. Step 3: Cross multiply
    105,157,561.34x = 145,117,884.96 × 57,473,778.86
  4. Step 4: Simplify right side
    105,157,561.34x = 8,340,473,228,821,960
  5. Step 5: Solve for x
    x = 8,340,473,228,821,960/105,157,561.34
  6. Step 6: Final answer
    x = 79,314,060.94

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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.