Home / 10,243,807.20-15,365,710.80-5,141,973.60

Finding the Fourth Proportional to 10,243,807.20, 15,365,710.80 and 5,141,973.60

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Solution

The fourth proportional to 10,243,807.20, 15,365,710.80 and 5,141,973.60 is: 7,712,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,243,807.20 : 15,365,710.80 = 5,141,973.60 : x
  2. Step 2: Convert to fraction form
    10,243,807.20/15,365,710.80 = 5,141,973.60/x
  3. Step 3: Cross multiply
    10,243,807.20x = 15,365,710.80 × 5,141,973.60
  4. Step 4: Simplify right side
    10,243,807.20x = 79,010,079,278,834.88
  5. Step 5: Solve for x
    x = 79,010,079,278,834.88/10,243,807.20
  6. Step 6: Final answer
    x = 7,712,960.40

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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.