Home / 120,690,830.40-181,153,162.62-114,136,391.40

Finding the Fourth Proportional to 120,690,830.40, 181,153,162.62 and 114,136,391.40

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Solution

The fourth proportional to 120,690,830.40, 181,153,162.62 and 114,136,391.40 is: 171,315,154.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,690,830.40 : 181,153,162.62 = 114,136,391.40 : x
  2. Step 2: Convert to fraction form
    120,690,830.40/181,153,162.62 = 114,136,391.40/x
  3. Step 3: Cross multiply
    120,690,830.40x = 181,153,162.62 × 114,136,391.40
  4. Step 4: Simplify right side
    120,690,830.40x = 20,676,168,272,144,172
  5. Step 5: Solve for x
    x = 20,676,168,272,144,172/120,690,830.40
  6. Step 6: Final answer
    x = 171,315,154.63

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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.