Home / 12,913,130.23-17,820,925.63-7,111,910.43

Finding the Fourth Proportional to 12,913,130.23, 17,820,925.63 and 7,111,910.43

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Solution

The fourth proportional to 12,913,130.23, 17,820,925.63 and 7,111,910.43 is: 9,814,880.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913,130.23 : 17,820,925.63 = 7,111,910.43 : x
  2. Step 2: Convert to fraction form
    12,913,130.23/17,820,925.63 = 7,111,910.43/x
  3. Step 3: Cross multiply
    12,913,130.23x = 17,820,925.63 × 7,111,910.43
  4. Step 4: Simplify right side
    12,913,130.23x = 126,740,826,842,471.55
  5. Step 5: Solve for x
    x = 126,740,826,842,471.55/12,913,130.23
  6. Step 6: Final answer
    x = 9,814,880.25

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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.