Home / 640,443,151.37-960,742,464.28-180,381,320.69

Finding the Fourth Proportional to 640,443,151.37, 960,742,464.28 and 180,381,320.69

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Solution

The fourth proportional to 640,443,151.37, 960,742,464.28 and 180,381,320.69 is: 270,593,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,443,151.37 : 960,742,464.28 = 180,381,320.69 : x
  2. Step 2: Convert to fraction form
    640,443,151.37/960,742,464.28 = 180,381,320.69/x
  3. Step 3: Cross multiply
    640,443,151.37x = 960,742,464.28 × 180,381,320.69
  4. Step 4: Simplify right side
    640,443,151.37x = 173,299,994,544,536,896
  5. Step 5: Solve for x
    x = 173,299,994,544,536,896/640,443,151.37
  6. Step 6: Final answer
    x = 270,593,875.78

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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.