Home / 138,724,965.92-208,116,647.84-52,461,443.36

Finding the Fourth Proportional to 138,724,965.92, 208,116,647.84 and 52,461,443.36

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Solution

The fourth proportional to 138,724,965.92, 208,116,647.84 and 52,461,443.36 is: 78,703,207.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,724,965.92 : 208,116,647.84 = 52,461,443.36 : x
  2. Step 2: Convert to fraction form
    138,724,965.92/208,116,647.84 = 52,461,443.36/x
  3. Step 3: Cross multiply
    138,724,965.92x = 208,116,647.84 × 52,461,443.36
  4. Step 4: Simplify right side
    138,724,965.92x = 10,918,099,732,931,226
  5. Step 5: Solve for x
    x = 10,918,099,732,931,226/138,724,965.92
  6. Step 6: Final answer
    x = 78,703,207.17

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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.