Home / 100,039,225.28-138,054,130.89-54,254,137.28

Finding the Fourth Proportional to 100,039,225.28, 138,054,130.89 and 54,254,137.28

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Solution

The fourth proportional to 100,039,225.28, 138,054,130.89 and 54,254,137.28 is: 74,870,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,039,225.28 : 138,054,130.89 = 54,254,137.28 : x
  2. Step 2: Convert to fraction form
    100,039,225.28/138,054,130.89 = 54,254,137.28/x
  3. Step 3: Cross multiply
    100,039,225.28x = 138,054,130.89 × 54,254,137.28
  4. Step 4: Simplify right side
    100,039,225.28x = 7,490,007,769,377,148
  5. Step 5: Solve for x
    x = 7,490,007,769,377,148/100,039,225.28
  6. Step 6: Final answer
    x = 74,870,709.45

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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.