Home / 15,420,911.16-21,280,539.06-8,545,333.08

Finding the Fourth Proportional to 15,420,911.16, 21,280,539.06 and 8,545,333.08

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Solution

The fourth proportional to 15,420,911.16, 21,280,539.06 and 8,545,333.08 is: 11,792,383.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420,911.16 : 21,280,539.06 = 8,545,333.08 : x
  2. Step 2: Convert to fraction form
    15,420,911.16/21,280,539.06 = 8,545,333.08/x
  3. Step 3: Cross multiply
    15,420,911.16x = 21,280,539.06 × 8,545,333.08
  4. Step 4: Simplify right side
    15,420,911.16x = 181,849,294,389,650.09
  5. Step 5: Solve for x
    x = 181,849,294,389,650.09/15,420,911.16
  6. Step 6: Final answer
    x = 11,792,383.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.