Home / 112,971,890.64-155,903,511.34-63,415,837.52

Finding the Fourth Proportional to 112,971,890.64, 155,903,511.34 and 63,415,837.52

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Solution

The fourth proportional to 112,971,890.64, 155,903,511.34 and 63,415,837.52 is: 87,515,148.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,971,890.64 : 155,903,511.34 = 63,415,837.52 : x
  2. Step 2: Convert to fraction form
    112,971,890.64/155,903,511.34 = 63,415,837.52/x
  3. Step 3: Cross multiply
    112,971,890.64x = 155,903,511.34 × 63,415,837.52
  4. Step 4: Simplify right side
    112,971,890.64x = 9,886,751,743,934,918
  5. Step 5: Solve for x
    x = 9,886,751,743,934,918/112,971,890.64
  6. Step 6: Final answer
    x = 87,515,148.13

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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.