Home / 712,220,670.51-982,919,051.27-448,129,037.17

Finding the Fourth Proportional to 712,220,670.51, 982,919,051.27 and 448,129,037.17

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Solution

The fourth proportional to 712,220,670.51, 982,919,051.27 and 448,129,037.17 is: 618,452,379.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,220,670.51 : 982,919,051.27 = 448,129,037.17 : x
  2. Step 2: Convert to fraction form
    712,220,670.51/982,919,051.27 = 448,129,037.17/x
  3. Step 3: Cross multiply
    712,220,670.51x = 982,919,051.27 × 448,129,037.17
  4. Step 4: Simplify right side
    712,220,670.51x = 440,474,568,061,674,944
  5. Step 5: Solve for x
    x = 440,474,568,061,674,944/712,220,670.51
  6. Step 6: Final answer
    x = 618,452,379.02

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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.