Home / 86,217,688.80-129,326,533.20-55,606,687.20

Finding the Fourth Proportional to 86,217,688.80, 129,326,533.20 and 55,606,687.20

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Solution

The fourth proportional to 86,217,688.80, 129,326,533.20 and 55,606,687.20 is: 83,410,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,217,688.80 : 129,326,533.20 = 55,606,687.20 : x
  2. Step 2: Convert to fraction form
    86,217,688.80/129,326,533.20 = 55,606,687.20/x
  3. Step 3: Cross multiply
    86,217,688.80x = 129,326,533.20 × 55,606,687.20
  4. Step 4: Simplify right side
    86,217,688.80x = 7,191,420,078,312,816
  5. Step 5: Solve for x
    x = 7,191,420,078,312,816/86,217,688.80
  6. Step 6: Final answer
    x = 83,410,030.80

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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.