Home / 12,865,699.04-19,295,600.40-7,679,772.32

Finding the Fourth Proportional to 12,865,699.04, 19,295,600.40 and 7,679,772.32

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Solution

The fourth proportional to 12,865,699.04, 19,295,600.40 and 7,679,772.32 is: 11,517,898.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865,699.04 : 19,295,600.40 = 7,679,772.32 : x
  2. Step 2: Convert to fraction form
    12,865,699.04/19,295,600.40 = 7,679,772.32/x
  3. Step 3: Cross multiply
    12,865,699.04x = 19,295,600.40 × 7,679,772.32
  4. Step 4: Simplify right side
    12,865,699.04x = 148,185,817,849,700.94
  5. Step 5: Solve for x
    x = 148,185,817,849,700.94/12,865,699.04
  6. Step 6: Final answer
    x = 11,517,898.67

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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.