Home / 2,119,666,417.38-3,179,844,999.81-625,848,963.12

Finding the Fourth Proportional to 2,119,666,417.38, 3,179,844,999.81 and 625,848,963.12

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Solution

The fourth proportional to 2,119,666,417.38, 3,179,844,999.81 and 625,848,963.12 is: 938,875,419.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,666,417.38 : 3,179,844,999.81 = 625,848,963.12 : x
  2. Step 2: Convert to fraction form
    2,119,666,417.38/3,179,844,999.81 = 625,848,963.12/x
  3. Step 3: Cross multiply
    2,119,666,417.38x = 3,179,844,999.81 × 625,848,963.12
  4. Step 4: Simplify right side
    2,119,666,417.38x = 1,990,102,696,013,405,184
  5. Step 5: Solve for x
    x = 1,990,102,696,013,405,184/2,119,666,417.38
  6. Step 6: Final answer
    x = 938,875,419.12

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Double scale
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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.