Home / 313,087,709.34-469,553,965.20-105,821,518.68

Finding the Fourth Proportional to 313,087,709.34, 469,553,965.20 and 105,821,518.68

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Solution

The fourth proportional to 313,087,709.34, 469,553,965.20 and 105,821,518.68 is: 158,706,050.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,087,709.34 : 469,553,965.20 = 105,821,518.68 : x
  2. Step 2: Convert to fraction form
    313,087,709.34/469,553,965.20 = 105,821,518.68/x
  3. Step 3: Cross multiply
    313,087,709.34x = 469,553,965.20 × 105,821,518.68
  4. Step 4: Simplify right side
    313,087,709.34x = 49,688,913,699,679,872
  5. Step 5: Solve for x
    x = 49,688,913,699,679,872/313,087,709.34
  6. Step 6: Final answer
    x = 158,706,050.15

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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.