Home / 12,771,804.70-19,157,707.05-5,194,870.30

Finding the Fourth Proportional to 12,771,804.70, 19,157,707.05 and 5,194,870.30

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Solution

The fourth proportional to 12,771,804.70, 19,157,707.05 and 5,194,870.30 is: 7,792,305.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771,804.70 : 19,157,707.05 = 5,194,870.30 : x
  2. Step 2: Convert to fraction form
    12,771,804.70/19,157,707.05 = 5,194,870.30/x
  3. Step 3: Cross multiply
    12,771,804.70x = 19,157,707.05 × 5,194,870.30
  4. Step 4: Simplify right side
    12,771,804.70x = 99,521,803,370,145.61
  5. Step 5: Solve for x
    x = 99,521,803,370,145.61/12,771,804.70
  6. Step 6: Final answer
    x = 7,792,305.45

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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.