Home / 86,916,830.80-130,186,289.40-52,778,635.60

Finding the Fourth Proportional to 86,916,830.80, 130,186,289.40 and 52,778,635.60

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Solution

The fourth proportional to 86,916,830.80, 130,186,289.40 and 52,778,635.60 is: 79,053,212.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,916,830.80 : 130,186,289.40 = 52,778,635.60 : x
  2. Step 2: Convert to fraction form
    86,916,830.80/130,186,289.40 = 52,778,635.60/x
  3. Step 3: Cross multiply
    86,916,830.80x = 130,186,289.40 × 52,778,635.60
  4. Step 4: Simplify right side
    86,916,830.80x = 6,871,054,728,358,743
  5. Step 5: Solve for x
    x = 6,871,054,728,358,743/86,916,830.80
  6. Step 6: Final answer
    x = 79,053,212.88

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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.