Home / 100,039,212.96-138,054,113.89-54,254,124.96

Finding the Fourth Proportional to 100,039,212.96, 138,054,113.89 and 54,254,124.96

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Solution

The fourth proportional to 100,039,212.96, 138,054,113.89 and 54,254,124.96 is: 74,870,692.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,039,212.96 : 138,054,113.89 = 54,254,124.96 : x
  2. Step 2: Convert to fraction form
    100,039,212.96/138,054,113.89 = 54,254,124.96/x
  3. Step 3: Cross multiply
    100,039,212.96x = 138,054,113.89 × 54,254,124.96
  4. Step 4: Simplify right side
    100,039,212.96x = 7,490,005,146,094,496
  5. Step 5: Solve for x
    x = 7,490,005,146,094,496/100,039,212.96
  6. Step 6: Final answer
    x = 74,870,692.45

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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.