Home / 839,723,154.96-1,159,048,441.20-487,412,649.12

Finding the Fourth Proportional to 839,723,154.96, 1,159,048,441.20 and 487,412,649.12

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Solution

The fourth proportional to 839,723,154.96, 1,159,048,441.20 and 487,412,649.12 is: 672,763,240.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,723,154.96 : 1,159,048,441.20 = 487,412,649.12 : x
  2. Step 2: Convert to fraction form
    839,723,154.96/1,159,048,441.20 = 487,412,649.12/x
  3. Step 3: Cross multiply
    839,723,154.96x = 1,159,048,441.20 × 487,412,649.12
  4. Step 4: Simplify right side
    839,723,154.96x = 564,934,871,183,698,560
  5. Step 5: Solve for x
    x = 564,934,871,183,698,560/839,723,154.96
  6. Step 6: Final answer
    x = 672,763,240.89

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1.5x scale

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.