Home / 840,501,402.56-1,261,517,166.70-447,358,290.46

Finding the Fourth Proportional to 840,501,402.56, 1,261,517,166.70 and 447,358,290.46

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Solution

The fourth proportional to 840,501,402.56, 1,261,517,166.70 and 447,358,290.46 is: 671,444,641.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,501,402.56 : 1,261,517,166.70 = 447,358,290.46 : x
  2. Step 2: Convert to fraction form
    840,501,402.56/1,261,517,166.70 = 447,358,290.46/x
  3. Step 3: Cross multiply
    840,501,402.56x = 1,261,517,166.70 × 447,358,290.46
  4. Step 4: Simplify right side
    840,501,402.56x = 564,350,163,080,854,848
  5. Step 5: Solve for x
    x = 564,350,163,080,854,848/840,501,402.56
  6. Step 6: Final answer
    x = 671,444,641.69

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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.