Home / 854,838,464.05-1,179,689,128.16-492,532,190.82

Finding the Fourth Proportional to 854,838,464.05, 1,179,689,128.16 and 492,532,190.82

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Solution

The fourth proportional to 854,838,464.05, 1,179,689,128.16 and 492,532,190.82 is: 679,701,364.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,838,464.05 : 1,179,689,128.16 = 492,532,190.82 : x
  2. Step 2: Convert to fraction form
    854,838,464.05/1,179,689,128.16 = 492,532,190.82/x
  3. Step 3: Cross multiply
    854,838,464.05x = 1,179,689,128.16 × 492,532,190.82
  4. Step 4: Simplify right side
    854,838,464.05x = 581,034,870,782,779,136
  5. Step 5: Solve for x
    x = 581,034,870,782,779,136/854,838,464.05
  6. Step 6: Final answer
    x = 679,701,364.90

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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.