Home / 86,155,384.80-129,233,077.20-61,968,914.40

Finding the Fourth Proportional to 86,155,384.80, 129,233,077.20 and 61,968,914.40

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Solution

The fourth proportional to 86,155,384.80, 129,233,077.20 and 61,968,914.40 is: 92,953,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,155,384.80 : 129,233,077.20 = 61,968,914.40 : x
  2. Step 2: Convert to fraction form
    86,155,384.80/129,233,077.20 = 61,968,914.40/x
  3. Step 3: Cross multiply
    86,155,384.80x = 129,233,077.20 × 61,968,914.40
  4. Step 4: Simplify right side
    86,155,384.80x = 8,008,433,498,655,392
  5. Step 5: Solve for x
    x = 8,008,433,498,655,392/86,155,384.80
  6. Step 6: Final answer
    x = 92,953,371.60

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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.