Home / 85,755,597.40-128,605,752.42-28,234,173.16

Finding the Fourth Proportional to 85,755,597.40, 128,605,752.42 and 28,234,173.16

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Solution

The fourth proportional to 85,755,597.40, 128,605,752.42 and 28,234,173.16 is: 42,342,158.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,755,597.40 : 128,605,752.42 = 28,234,173.16 : x
  2. Step 2: Convert to fraction form
    85,755,597.40/128,605,752.42 = 28,234,173.16/x
  3. Step 3: Cross multiply
    85,755,597.40x = 128,605,752.42 × 28,234,173.16
  4. Step 4: Simplify right side
    85,755,597.40x = 3,631,077,083,198,369
  5. Step 5: Solve for x
    x = 3,631,077,083,198,369/85,755,597.40
  6. Step 6: Final answer
    x = 42,342,158.33

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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.