Home / 120,690,825.40-181,153,155.12-114,136,386.40

Finding the Fourth Proportional to 120,690,825.40, 181,153,155.12 and 114,136,386.40

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Solution

The fourth proportional to 120,690,825.40, 181,153,155.12 and 114,136,386.40 is: 171,315,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,690,825.40 : 181,153,155.12 = 114,136,386.40 : x
  2. Step 2: Convert to fraction form
    120,690,825.40/181,153,155.12 = 114,136,386.40/x
  3. Step 3: Cross multiply
    120,690,825.40x = 181,153,155.12 × 114,136,386.40
  4. Step 4: Simplify right side
    120,690,825.40x = 20,676,166,510,355,460
  5. Step 5: Solve for x
    x = 20,676,166,510,355,460/120,690,825.40
  6. Step 6: Final answer
    x = 171,315,147.13

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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.