Home / 1,978,886,190.17-2,730,852,379.44-1,074,634,220.69

Finding the Fourth Proportional to 1,978,886,190.17, 2,730,852,379.44 and 1,074,634,220.69

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Solution

The fourth proportional to 1,978,886,190.17, 2,730,852,379.44 and 1,074,634,220.69 is: 1,482,989,488.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,886,190.17 : 2,730,852,379.44 = 1,074,634,220.69 : x
  2. Step 2: Convert to fraction form
    1,978,886,190.17/2,730,852,379.44 = 1,074,634,220.69/x
  3. Step 3: Cross multiply
    1,978,886,190.17x = 2,730,852,379.44 × 1,074,634,220.69
  4. Step 4: Simplify right side
    1,978,886,190.17x = 2,934,667,418,610,952,704
  5. Step 5: Solve for x
    x = 2,934,667,418,610,952,704/1,978,886,190.17
  6. Step 6: Final answer
    x = 1,482,989,488.32

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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.