Home / 124,734,036.20-186,817,619.10-78,817,533.80

Finding the Fourth Proportional to 124,734,036.20, 186,817,619.10 and 78,817,533.80

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Solution

The fourth proportional to 124,734,036.20, 186,817,619.10 and 78,817,533.80 is: 118,047,202.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,734,036.20 : 186,817,619.10 = 78,817,533.80 : x
  2. Step 2: Convert to fraction form
    124,734,036.20/186,817,619.10 = 78,817,533.80/x
  3. Step 3: Cross multiply
    124,734,036.20x = 186,817,619.10 × 78,817,533.80
  4. Step 4: Simplify right side
    124,734,036.20x = 14,724,504,007,849,774
  5. Step 5: Solve for x
    x = 14,724,504,007,849,774/124,734,036.20
  6. Step 6: Final answer
    x = 118,047,202.32

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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.