Home / 400,697,965.80-600,697,028.70-155,222,087.40

Finding the Fourth Proportional to 400,697,965.80, 600,697,028.70 and 155,222,087.40

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Solution

The fourth proportional to 400,697,965.80, 600,697,028.70 and 155,222,087.40 is: 232,697,579.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,697,965.80 : 600,697,028.70 = 155,222,087.40 : x
  2. Step 2: Convert to fraction form
    400,697,965.80/600,697,028.70 = 155,222,087.40/x
  3. Step 3: Cross multiply
    400,697,965.80x = 600,697,028.70 × 155,222,087.40
  4. Step 4: Simplify right side
    400,697,965.80x = 93,241,446,689,791,712
  5. Step 5: Solve for x
    x = 93,241,446,689,791,712/400,697,965.80
  6. Step 6: Final answer
    x = 232,697,579.34

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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.