Home / 85,360,612.14-128,064,892.59-34,278,503.22

Finding the Fourth Proportional to 85,360,612.14, 128,064,892.59 and 34,278,503.22

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Solution

The fourth proportional to 85,360,612.14, 128,064,892.59 and 34,278,503.22 is: 51,427,382.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,360,612.14 : 128,064,892.59 = 34,278,503.22 : x
  2. Step 2: Convert to fraction form
    85,360,612.14/128,064,892.59 = 34,278,503.22/x
  3. Step 3: Cross multiply
    85,360,612.14x = 128,064,892.59 × 34,278,503.22
  4. Step 4: Simplify right side
    85,360,612.14x = 4,389,872,833,015,269
  5. Step 5: Solve for x
    x = 4,389,872,833,015,269/85,360,612.14
  6. Step 6: Final answer
    x = 51,427,382.29

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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.