Home / 147,995,979.20-221,993,968.80-145,728,497.60

Finding the Fourth Proportional to 147,995,979.20, 221,993,968.80 and 145,728,497.60

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Solution

The fourth proportional to 147,995,979.20, 221,993,968.80 and 145,728,497.60 is: 218,592,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,995,979.20 : 221,993,968.80 = 145,728,497.60 : x
  2. Step 2: Convert to fraction form
    147,995,979.20/221,993,968.80 = 145,728,497.60/x
  3. Step 3: Cross multiply
    147,995,979.20x = 221,993,968.80 × 145,728,497.60
  4. Step 4: Simplify right side
    147,995,979.20x = 32,350,847,549,485,276
  5. Step 5: Solve for x
    x = 32,350,847,549,485,276/147,995,979.20
  6. Step 6: Final answer
    x = 218,592,746.40

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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.