Home / 240,245,816.80-360,368,725.20-86,915,538.40

Finding the Fourth Proportional to 240,245,816.80, 360,368,725.20 and 86,915,538.40

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Solution

The fourth proportional to 240,245,816.80, 360,368,725.20 and 86,915,538.40 is: 130,373,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,245,816.80 : 360,368,725.20 = 86,915,538.40 : x
  2. Step 2: Convert to fraction form
    240,245,816.80/360,368,725.20 = 86,915,538.40/x
  3. Step 3: Cross multiply
    240,245,816.80x = 360,368,725.20 × 86,915,538.40
  4. Step 4: Simplify right side
    240,245,816.80x = 31,321,641,773,279,648
  5. Step 5: Solve for x
    x = 31,321,641,773,279,648/240,245,816.80
  6. Step 6: Final answer
    x = 130,373,307.60

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1.5x scale

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.