Home / 12,817,768.23-17,688,076.79-7,312,925.21

Finding the Fourth Proportional to 12,817,768.23, 17,688,076.79 and 7,312,925.21

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Solution

The fourth proportional to 12,817,768.23, 17,688,076.79 and 7,312,925.21 is: 10,091,583.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817,768.23 : 17,688,076.79 = 7,312,925.21 : x
  2. Step 2: Convert to fraction form
    12,817,768.23/17,688,076.79 = 7,312,925.21/x
  3. Step 3: Cross multiply
    12,817,768.23x = 17,688,076.79 × 7,312,925.21
  4. Step 4: Simplify right side
    12,817,768.23x = 129,351,582,549,001.88
  5. Step 5: Solve for x
    x = 129,351,582,549,001.88/12,817,768.23
  6. Step 6: Final answer
    x = 10,091,583.83

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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.