Home / 8,736,428.80-13,104,643.20-8,240,417.20

Finding the Fourth Proportional to 8,736,428.80, 13,104,643.20 and 8,240,417.20

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Solution

The fourth proportional to 8,736,428.80, 13,104,643.20 and 8,240,417.20 is: 12,360,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736,428.80 : 13,104,643.20 = 8,240,417.20 : x
  2. Step 2: Convert to fraction form
    8,736,428.80/13,104,643.20 = 8,240,417.20/x
  3. Step 3: Cross multiply
    8,736,428.80x = 13,104,643.20 × 8,240,417.20
  4. Step 4: Simplify right side
    8,736,428.80x = 107,987,727,225,143.03
  5. Step 5: Solve for x
    x = 107,987,727,225,143.03/8,736,428.80
  6. Step 6: Final answer
    x = 12,360,625.80

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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.