Home / 12,457,815.30-18,666,602.55-7,050,384.90

Finding the Fourth Proportional to 12,457,815.30, 18,666,602.55 and 7,050,384.90

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Solution

The fourth proportional to 12,457,815.30, 18,666,602.55 and 7,050,384.90 is: 10,564,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,815.30 : 18,666,602.55 = 7,050,384.90 : x
  2. Step 2: Convert to fraction form
    12,457,815.30/18,666,602.55 = 7,050,384.90/x
  3. Step 3: Cross multiply
    12,457,815.30x = 18,666,602.55 × 7,050,384.90
  4. Step 4: Simplify right side
    12,457,815.30x = 131,606,732,752,821.50
  5. Step 5: Solve for x
    x = 131,606,732,752,821.50/12,457,815.30
  6. Step 6: Final answer
    x = 10,564,190.40

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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.