Home / 10,602,504.80-15,903,757.20-5,211,987.20

Finding the Fourth Proportional to 10,602,504.80, 15,903,757.20 and 5,211,987.20

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Solution

The fourth proportional to 10,602,504.80, 15,903,757.20 and 5,211,987.20 is: 7,817,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,602,504.80 : 15,903,757.20 = 5,211,987.20 : x
  2. Step 2: Convert to fraction form
    10,602,504.80/15,903,757.20 = 5,211,987.20/x
  3. Step 3: Cross multiply
    10,602,504.80x = 15,903,757.20 × 5,211,987.20
  4. Step 4: Simplify right side
    10,602,504.80x = 82,890,178,958,307.84
  5. Step 5: Solve for x
    x = 82,890,178,958,307.84/10,602,504.80
  6. Step 6: Final answer
    x = 7,817,980.80

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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.