Home / 1,998,061,543,055-2,991,930,636,904.20-1,378,993,210,667.50

Finding the Fourth Proportional to 1,998,061,543,055, 2,991,930,636,904.20 and 1,378,993,210,667.50

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Solution

The fourth proportional to 1,998,061,543,055, 2,991,930,636,904.20 and 1,378,993,210,667.50 is: 2,064,927,403,973.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,061,543,055 : 2,991,930,636,904.20 = 1,378,993,210,667.50 : x
  2. Step 2: Convert to fraction form
    1,998,061,543,055/2,991,930,636,904.20 = 1,378,993,210,667.50/x
  3. Step 3: Cross multiply
    1,998,061,543,055x = 2,991,930,636,904.20 × 1,378,993,210,667.50
  4. Step 4: Simplify right side
    1,998,061,543,055x = 4,125,852,035,078,981,360,287,744
  5. Step 5: Solve for x
    x = 4,125,852,035,078,981,360,287,744/1,998,061,543,055
  6. Step 6: Final answer
    x = 2,064,927,403,973.07

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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.