Home / 156,586,287.80-234,879,431.70-131,643,990.20

Finding the Fourth Proportional to 156,586,287.80, 234,879,431.70 and 131,643,990.20

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Solution

The fourth proportional to 156,586,287.80, 234,879,431.70 and 131,643,990.20 is: 197,465,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,586,287.80 : 234,879,431.70 = 131,643,990.20 : x
  2. Step 2: Convert to fraction form
    156,586,287.80/234,879,431.70 = 131,643,990.20/x
  3. Step 3: Cross multiply
    156,586,287.80x = 234,879,431.70 × 131,643,990.20
  4. Step 4: Simplify right side
    156,586,287.80x = 30,920,465,604,896,368
  5. Step 5: Solve for x
    x = 30,920,465,604,896,368/156,586,287.80
  6. Step 6: Final answer
    x = 197,465,985.30

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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.