Home / 120,311,484,261.16-180,473,220,784.20-45,787,243,567.72

Finding the Fourth Proportional to 120,311,484,261.16, 180,473,220,784.20 and 45,787,243,567.72

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Solution

The fourth proportional to 120,311,484,261.16, 180,473,220,784.20 and 45,787,243,567.72 is: 68,683,146,652.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,311,484,261.16 : 180,473,220,784.20 = 45,787,243,567.72 : x
  2. Step 2: Convert to fraction form
    120,311,484,261.16/180,473,220,784.20 = 45,787,243,567.72/x
  3. Step 3: Cross multiply
    120,311,484,261.16x = 180,473,220,784.20 × 45,787,243,567.72
  4. Step 4: Simplify right side
    120,311,484,261.16x = 8,263,371,317,497,073,500,160
  5. Step 5: Solve for x
    x = 8,263,371,317,497,073,500,160/120,311,484,261.16
  6. Step 6: Final answer
    x = 68,683,146,652.57

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1.5x scale

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.