Home / 10,315,129.20-15,472,693.80-2,742,860.40

Finding the Fourth Proportional to 10,315,129.20, 15,472,693.80 and 2,742,860.40

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Solution

The fourth proportional to 10,315,129.20, 15,472,693.80 and 2,742,860.40 is: 4,114,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315,129.20 : 15,472,693.80 = 2,742,860.40 : x
  2. Step 2: Convert to fraction form
    10,315,129.20/15,472,693.80 = 2,742,860.40/x
  3. Step 3: Cross multiply
    10,315,129.20x = 15,472,693.80 × 2,742,860.40
  4. Step 4: Simplify right side
    10,315,129.20x = 42,439,439,105,345.52
  5. Step 5: Solve for x
    x = 42,439,439,105,345.52/10,315,129.20
  6. Step 6: Final answer
    x = 4,114,290.60

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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.