Home / 78,312,019.55-117,468,029.33-78,312,019.55

Finding the Fourth Proportional to 78,312,019.55, 117,468,029.33 and 78,312,019.55

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Solution

The fourth proportional to 78,312,019.55, 117,468,029.33 and 78,312,019.55 is: 117,468,029.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,312,019.55 : 117,468,029.33 = 78,312,019.55 : x
  2. Step 2: Convert to fraction form
    78,312,019.55/117,468,029.33 = 78,312,019.55/x
  3. Step 3: Cross multiply
    78,312,019.55x = 117,468,029.33 × 78,312,019.55
  4. Step 4: Simplify right side
    78,312,019.55x = 9,199,158,608,999,374
  5. Step 5: Solve for x
    x = 9,199,158,608,999,374/78,312,019.55
  6. Step 6: Final answer
    x = 117,468,029.33

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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.