Home / 86,733,467.72-129,926,728.71-52,170,790.40

Finding the Fourth Proportional to 86,733,467.72, 129,926,728.71 and 52,170,790.40

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Solution

The fourth proportional to 86,733,467.72, 129,926,728.71 and 52,170,790.40 is: 78,151,840.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,733,467.72 : 129,926,728.71 = 52,170,790.40 : x
  2. Step 2: Convert to fraction form
    86,733,467.72/129,926,728.71 = 52,170,790.40/x
  3. Step 3: Cross multiply
    86,733,467.72x = 129,926,728.71 × 52,170,790.40
  4. Step 4: Simplify right side
    86,733,467.72x = 6,778,380,130,887,072
  5. Step 5: Solve for x
    x = 6,778,380,130,887,072/86,733,467.72
  6. Step 6: Final answer
    x = 78,151,840.45

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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.